CMC · California Mechanical Code

How are 'Equipment' and 'Fixture' defined for the CMC?

Short answer for homeowners: The mechanical code treats **equipment** as building service machines (HVAC, boilers, elevators, etc.) and **fixtures** as installed devices like sinks or lights; manufacturing or process machines are usually excluded, though their service connections are covered. I could not find the CMC § 202.0 text in your supplied files, so I relied on the Existing Building Code’s “Equipment or Fixture” definition as the closest authoritative guidance — for the exact CMC wording check § 202.0 in your adopted CMC or ask your local building official.

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Last reviewed: July 6, 2026

What the code requires — 2–4 sentences

The controlling definitions are located in the code’s Definitions chapter (the user-specified controlling section is § 202.0). I could not find the verbatim text of § 202.0 from the California Mechanical Code (CMC) in the files you provided, so I cannot reproduce an authoritative CMC wording here. However, a closely related California code definition — “Equipment or Fixture” — is available in the California Existing Building Code and is commonly used as the working interpretation for building-service items (see the quoted summary below). For CMC-specific application, consult § 202.0 of the CMC in your jurisdiction; the files I have show the CMC index points related equipment definitions to the CMC text (see the CMC index) but the actual §202.0 wording wasn’t present in the retrieved CMC pages.

The most important point: if the CMC § 202.0 text is not available, do not assume a different definition — confirm the CMC § 202.0 wording with the adopted code book or your AHJ.

Requirements in detail

Short plain-English synthesis (practical rule)

Equipment (as used across California building codes) normally means building service machines and installations — e.g., plumbing, heating, electrical, ventilating, air‑conditioning, refrigerating, fire‑protection equipment; elevators; boilers; pressure vessels; and similar mechanical facilities used to serve the building.
Fixture generally refers to an installed device that connects to building services (plumbing fixtures, light fixtures, fixed HVAC diffusers, etc.).
These categories typically exclude manufacturing, production, or process equipment (but do include the connections from building service to process equipment). The Existing Building Code definition mirrors this approach (see Code Reference).

Decision-relevant dimensions (quick table)

Decision question	Typical answer	Why it matters	Code reference
Is the item part of building services (HVAC, plumbing, fire protection, lifts)?	Yes → treat as Equipment	Determines which mechanical code rules (clearances, installation, servicing) apply	Existing Building Code “Equipment or Fixture” definition
Is the item a fixed installed device for occupant use (lavatory, light, toilet)?	Yes → treat as Fixture	Affects sizing, connections, and fixture-unit counts for plumbing & mechanical design	Existing Building Code definition; check CMC § 202.0 when available
Is the item used for manufacturing/process (e.g., production line machine)?	No — excluded from “Equipment or fixture” (except the building-service connections)	Process equipment often falls under industrial or process codes, not the mechanical code’s equipment rules	Existing Building Code exclusion (includes connections)
Where in the CMC to check related rules (clearances, access)?	See equipment installation sections (examples: § 303.8, § 303.10, § 304.0)	Installation/clearance/roof-mount requirements are in these sections	CMC index and equipment topics in the CMC text preview

How I reached this (documentation status)

The California Existing Building Code includes a clear “EQUIPMENT OR FIXTURE” definition that states the items included (HVAC, plumbing, electrical, elevators, boilers, pressure vessels, etc.), excludes manufacturing/process equipment, and includes connections from building services to process equipment; that wording is present in the files you gave me.
The CMC materials in the files show index entries and cross references for equipment (e.g., clearances, rooftop installations) but the exact text of CMC § 202.0 was not present in the retrieved CMC pages I was given. I therefore cannot quote an authoritative CMC § 202.0 phrasing from the supplied files.

Exceptions & special cases

Equipment that is part of a process line or manufacturing operation is commonly excluded from the “equipment or fixture” definition used for building‑service code requirements; however, the connection point (where building services tie into process equipment) is usually subject to building/CMC rules. Reference: Existing Building Code text (included/excluded language).
Some equipment (e.g., specialty medical gas systems, industrial refrigeration, or fuel systems) have separate, specific chapters and definitions and may be treated differently under CMC or other California codes — always check the specific chapter (e.g., medical gas sections, refrigerant chapters). The CMC index and chapter headings point to those specialized sections.

Common mistakes

Treating process/manufacturing machinery as ordinary building equipment and applying standard CMC equipment rules without checking the process exclusion — this can lead to incorrect permitting or the wrong code chapter being applied. The Existing Building Code explicitly excludes manufacturing/process equipment from “equipment or fixture.”
Assuming all installed devices are “fixtures” for plumbing fixture counts (e.g., an industrial sink or process drain might be treated differently). Verify whether the device is a building fixture or process equipment.
Relying on code index references alone. The CMC index points to relevant sections (for example equipment topics and installation sections), but you must read the actual section text (CMC § 202.0) to confirm exact definitions — that exact text was not in the files you supplied.

Worked example — concrete scenario

Scenario: A small commercial bakery installs a rooftop packaged HVAC unit, a walk‑in proofer with its own heated chamber (process equipment), and a wall‑mounted hand sink in the employee area.

Step 1 — Classify:

Rooftop packaged HVAC unit → Equipment (building service HVAC) — CMC installation and rooftop equipment rules apply (clearance, anchorage, service access). See CMC equipment/roof rules (e.g., § 303.8, § 303.10 references in CMC index).
Walk‑in proofer (used in production) → Process / manufacturing equipment (excluded from “equipment or fixture”), but the connection to building service (gas, water, or electrical) is included and those connections must meet code. Existing Building Code notes this exclusion while including the service connections.
Wall‑mounted hand sink → Fixture (plumbing fixture) — count for plumbing fixture units and subject to plumbing/CMC fixture requirements.

Step 2 — Apply numbers (example):

For the rooftop HVAC unit, use the CMC equipment installation clearances and rooftop rules for service access (measure and maintain required clearances at all sides per equipment clearance tables; see the CMC equipment/clearance sections indicated in the index).
For plumbing sizing, add the hand sink’s fixture unit value to the branch calculation per the Plumbing Code tables (the hand sink would have a listed DFU that must be included). (Plumbing Code fixture‑unit tables are in the CPC, which is referenced by the CMC and Building Code.)

Note: I cannot provide numeric clearance minimums or the exact § 202.0 text from the CMC because those exact paragraphs were not present in the provided CMC excerpts; consult your adopted CMC book or local AHJ for the precise § wording and clearance tables.

Related provisions (CMC / related California codes to check)

California Mechanical Code — equipment installation & rooftop equipment: § 303.8, § 303.10, § 304.0 (see CMC index for equipment topics).
CMC — design/identification/service and access for equipment: see the CMC index entries for equipment design and identification (for example § 303.6, § 304.0).
California Plumbing Code — fixture unit values and plumbing fixture definitions and sizing (see Tables 702.1 and related sections) — relevant when distinguishing plumbing fixtures from process equipment.
California Existing Building Code — the explicit “EQUIPMENT OR FIXTURE” definition (useful working text where the CMC definition is not on hand).

(If you want, I can pull the exact CMC § 202.0 wording if you upload the CMC § 202.0 page or permit me to search an additional document containing the full CMC Chapter 2 text.)

Code references

Grounded in the retrieved California Mechanical Code — click a citation to read the verbatim passage:

CMC § 2-4 High relevance — show source text
1. The vertical elements of the lateral force-resisting system have suffered damage such that the lateral load-carrying capacity of any story in any horizontal direction has been reduced by more than 10 percent from its pre-earthquake condition.
[BE] EMERGENCY ESCAPE AND RESCUE OPENING. An operable exterior window, door or other similar device that provides for a means of escape and access for rescue in the event of an emergency.

ENFORCEMENT AGENCY. [BSC, DSA-SS, DSA-SS/CC] The agency or organization charged with responsibility for agency or organization compliance with the requirements of this code, also known as the Authority Having Jurisdiction in ASCE 41.

EQUIPMENT OR FIXTURE. Any plumbing, heating, electrical, ventilating, air conditioning, refrigerating and fire protection equipment; and elevators, dumbwaiters, escalators, boilers, pressure vessels and other mechanical facilities; or installations that are related to building services. Equipment or fixture shall not include manufacturing, production or process equipment, but shall include connections from building service to process equipment.

[A] EXISTING BUILDING. A building erected prior to the date of adoption of the appropriate code, or one for which a legal building permit has been issued.

[A] EXISTING STRUCTURE. A structure erected prior to the date of adoption of the appropriate code, or one for which a legal building permit has been issued.

EXISTING STRUCTURE. [OSHPD 1, 1R, 2, 4 & 5] A structure that has a valid certificate of occupancy issued by the building official.

EXTERIOR ELEVATED ELEMENT. See Government Code Section 17973(b)(2).

[BF] EXTERIOR WALL COVERING. A material or assembly of materials applied on the exterior side of exterior walls for the purpose of providing a weather-resisting barrier, insulation or for aesthetics, including but not limited to, veneers, siding, exterior insulation and finish systems, architectural trim and embellishments, such as cornices, soffits, facias, gutters and leaders.

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DEFINITIONS

[BF] EXTERIOR WALL ENVELOPE. A system or assembly of exterior wall components, including exterior wall finish materials, that provides protection of the building structural members, including framing and sheathing materials, and conditioned interior space from the detrimental effects of the exterior environment.

[A] FACILITY. All or any portion of buildings, structures, site improvements, elements and pedestrian or vehicular routes located on a site.

[BS] FLOOD HAZARD AREA. The greater of the following two areas:
1. The area within a flood plain subject to a 1-percent or greater chance of flooding in any year.
2. The area designated as a flood hazard area on a community’s flood hazard map, or otherwise legally designated.
GENERAL ACUTE CARE HOSPITAL. [OSHPD 1] See California Building Code Section 1224.3.

CMC § 2.2 Medium relevance — show source text

For drainage fixture unit values related to lots within special occupancy parks in all parts of the State of Cal-_ ifornia, see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2268.

required, and the unit equivalent of fixtures and devices not shown in Table 702.1 shall be based on the size of trap or trap

arm.

Maximum drainage fixture units for a fixture trap and trap arm loadings for sizes up to 4 inches (100 mm) shall be in accordance with Table 702.1(1).

TABLE 702.1(1) MAXIMUM DRAINAGE FIXTURE UNITS FOR A

TRAP AND TRAP ARM*

SIZE OF TRAP AND TRAP ARM (inches)	DRAINAGE FIXTURE UNIT VALUES (DFU)
11⁄4	1 unit
11⁄2	3 units
2	4 units
3	6 units
4	8 units

For SI Units: 1 inch = 25 mm

*** Exception:** On self-service laundries.

702.2 Intermittent Flow. Drainage fixture units for intermittent flow into the drainage system shall be computed on the rated discharge capacity in gallons per minute (gpm) (L/s) in accordance with Table 702.2.

TABLE 702.1(1) MAXIMUM DRAINAGE FIXTURE UNITS FOR A

TRAP AND TRAP ARM*

For SI Units: 1 inch = 25 mm

*** Exception:** On self-service laundries.

TABLE 702.2

DISCHARGE CAPACITY IN GALLONS PER MINUTE FOR

INTERMITTENT FLOW ONLY*

GPM	FIXTURE UNITS
Up to 71⁄2	Equals 1 Fixture Unit
Greater than 71⁄2 to 15	Equals 2 Fixture Units
Greater than 15 to 30	Equals 4 Fixture Units
Greater than 30 to 50	Equals 6 Fixture Units

For SI units: 1 gallon per minute = 0.06 L/s

Discharge capacity exceeding 50 gallons per minute (3.15 L/s) shall be determined by the Authority Having Jurisdiction.

702.3 Continuous Flow. For a continuous flow into a drainage system, such as from a pump, sump ejector, air conditioning equipment, or similar device, 2 fixture units shall be equal to each gallon per minute (gpm) (L/s) of flow.

703.0 Size of Drainage Piping. 703.1 Minimum Size. The minimum sizes of vertical, horizontal, or both drainage piping shall be determined from the total of fixture units connected thereto, and additionally, in the case of vertical drainage pipes, in accordance with their length.

703.2 Maximum Number of Fixture Units. Table 703.2

shows the maximum number of fixture units allowed on a vertical or horizontal drainage pipe, building drain, or building sewer of a given size; the maximum number of fixture units allowed on a branch interval of a given size; and the maximum length (in feet and meters) of a vertical drainage pipe of a given size. 703.3 Sizing per Appendix C. For alternate method of sizing drainage piping, see Appendix C.

CMC § 1306.1 Medium relevance — show source text
1306.1

Dangerous Nonstructural 115.1, 116.1 Structural 104.4, 114.1, 117.1, 202,

302.1

Deferred Submittal 106.3.4, 106.6, 202 Definitions 202 Demolition 101.5, 104.3, 106.2.6, 108.5, 113.2, 115.5, 117, 1501.6, 1501.6.1, 1501.7, 1502.1, 1503.1, 1504.1, 1505.2 Department of Building Safety 104.2.4, 105.3, 109.3.8 Disproportionate Earthquake Damage 202, 405.2.2, 502.2

Egress (see Means of Egress) Electrical A102.1, 105.1, 105.1.1, 105.2, 108.3, 109.3.4, 202, 406, 801.3, 801.4, 806, 1007, 1101.2 Elevator 905.4, 1011.8.3, 1102.2, 1305.2.14, 1305.2.14.1, Table 1305.2.14, Table 1306.1 Emergency Escape and Rescue Openings 202, 505, 506.4, 702.4, 702.5, 702.5.1, 702.6 Emergency Power 804.6.5, 1305.2.15.1 Energy 302.2, 702.7, 708, 809, 907, 1104 Engineer (see Registered Design Professional) Equipment or Fixture 202 Existing (see Building) Existing Building 202 Existing Structure 202 Exit 504.1.4, 802.2.1, 802.4, 802.4.1, 804, 903.1, 903.3, 905.2, 905.3, 1011.5, 1011.5.1, Table 1011.5, 1011.8.2, 1102.2, 1305.2.3.2, 1305.2.6, 1305.2.10.1, 1305.2.11, 1305.2.11.1, 1305.2.12, 1305.2.13, 1305.2.15.1, Table 1305.2.15, Table 1306.1,

A402 Exit, Horizontal 503.15, 804.10, 1305.2.3.1 Exterior Wall Covering 202 Addition and replacement 309 Automatic sprinkler systems 309.2.1 Exterior Wall Envelope 202 Addition and replacement 309 Automatic sprinkler systems 309.2.1

Fire Alarm Systems 803.4, 904.2, 1011.2.2,
CMC § 0.34 Medium relevance — show source text
32 to 0.34|250|4.5|5.0|5.0|5.0|5.0| |251 to 350|0.29 to 0.32|200|3.0|4.0|4.5|4.5|4.5| |201 to 250|0.27 to 0.30|150|2.5|2.5|2.5|3.0|3.0| |141 to 200|0.25 to 0.29|125|1.5|1.5|2.0|2.0|2.0| |105 to 140|0.22 to 0.28|100|1.0|1.0|1.5|1.5|1.5|

For SI units: °C=(°F-32)/1.8, 1 inch = 25 mm, 1 British thermal unit inch per hour square foot degree Fahrenheit = [0.1 W/(m•K)]

Notes: 1 For insulation outside the stated conductivity range, the minimum thickness ( T ) shall be determined as follows: T = r {(1 + t / r ) [K] [/] [k ] – 1}

Where:

T = minimum insulation thickness (inches). r = actual outside radius of pipe (inches). t = insulation thickness listed in this table for applicable fluid temperature and pipe size. K = conductivity of alternate material at mean rating temperature indicated for the applicable fluid temperature [Btu•in/(h•ft [2] - °F)] [W/(m•K)]. k = the upper value of the conductivity range listed in this table for the applicable fluid temperature. 2 These thicknesses are on energy efficiency considerations only. Additional insulation is sometimes required relative to safety issues/surface temperature. 3 For piping smaller than 1 1 ⁄ 2 inches (40 mm) or less and located in partitions within conditioned spaces, reduction of these thicknesses by 1 inch (25.4 mm) shall be permitted (before thickness adjustment required in footnote 1) but not to thicknesses below 1 inch (25.4 mm). 4 For direct-buried heating and hot water system piping, reduction of these thicknesses by 1 1 ⁄ 2 inch (40 mm) shall be permitted (before thickness adjustment required in footnote 1) but not to thicknesses below 1 inch (25.4 mm). 5 Table E 503.7.3(1) is based on steel pipe. Nonmetallic pipes schedule 80 thickness or less shall use the table values. For other nonmetallic pipes having thermal resistance more than that of steel pipe, reduced insulation thicknesses are permitted where documentation is provided showing that the pipe with the proposed insulation has no more heat transfer per foot (mm) than a steel pipe of the same size with the insulation thickness shown in Table E 503.7.3(1).

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APPENDIX E

TABLE E 503.7.3(2) MINIMUM PIPE INSULATION THICKNESS FOR COOLING SYSTEMS (CHILLED WATER, BRINE, AND REFRIGERANT) [1,2,3,4 ]

[ASHRAE 90.1: TABLE 6.8.3-2]
CMC § 506.4 Medium relevance — show source text
506.4, 702.4, 702.5, 702.5.1, 702.6 Emergency Power 804.6.5, 1305.2.15.1 Energy 302.2, 702.7, 708, 809, 907, 1104 Engineer (see Registered Design Professional) Equipment or Fixture 202 Existing (see Building) Existing Building 202 Existing Structure 202 Exit 504.1.4, 802.2.1, 802.4, 802.4.1, 804, 903.1, 903.3, 905.2, 905.3, 1011.5, 1011.5.1, Table 1011.5, 1011.8.2, 1102.2, 1305.2.3.2, 1305.2.6, 1305.2.10.1, 1305.2.11, 1305.2.11.1, 1305.2.12, 1305.2.13, 1305.2.15.1, Table 1305.2.15, Table 1306.1,

A402 Exit, Horizontal 503.15, 804.10, 1305.2.3.1 Exterior Wall Covering 202 Addition and replacement 309 Automatic sprinkler systems 309.2.1 Exterior Wall Envelope 202 Addition and replacement 309 Automatic sprinkler systems 309.2.1

Fire Alarm Systems 803.4, 904.2, 1011.2.2,

1305.2.9 Fire Escapes 504, 802.2.1, 804.4.1.2, 1305.2.11, 1305.2.11.1 Fire Protection 106.2.2, 202, 403, 703, 801.3, 803, 804.7.1, 804.7.2, 904, 1001.2, 1004, 1011.1, 1011.2, 1011.2.1, 1011.2.2, 1011.8.4, 1102.3, 1501.2.1, 1501.3, 1509 Fire Ratings 804.7.1, 804.7.2, 1011.6.1, 1011.6.1.1, 1011.6.3, 1011.7, 1011.7.1, 1011.7.2, 1011.7.3, 1011.8.2, 1011.8.3, 1011.8.4, 1302.1.2, 1305.2.3.2, 1305.2.3.3, 1305.2.4, 1305.2.4.1, 1305.2.5, 1305.2.5.1, 1305.2.6, 1305.2.16.1, Table 1306.1,

Resource A

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INDEX
CMC § 105.5.21 Medium relevance — show source text
Permit 105.5.21 Sealing of buildings 2603.5 Warning signs 2603.3.1 Watch personnel 2603.3.3 Furnace Class A, B, C, D Defined 202 Furnishings 808, 1032.6 Furniture, Upholstered 805, 903.2.4 Fusible Links 705.2, 904.14.5.3, 910.5.1

Garage (see Repair Garage) Garaging (see Parking and Garaging) Gas Cabinet 2703.10.2, 2703.13.1.3, 5003.8.6, 5303.7.10, 6004.1.1 Defined 202 Gas Detection System 916 Carbon dioxide systems 5307.3.2, 5307.4.3

Defined 202

Emergency power 1203.2.7 Energy storage systems 1207.6.1.2.4 Highly toxic or toxic gases 6004.2.2.10 HPM gases 2703.13 Hydrogen fuel gas rooms 5808.5 Hydrogen vehicles 2311.8.9

LNG 2311.8.9

Ozone gas 6005.3.2 Processing and extraction 3905.1 Stationary fuel cell power systems 1206.6.3

Gas Detector (see Combustible Gas Detector)

Gas Meters 605.8

Gas Room 5003.8.4, 6004.2.2.6 Defined 202

Gas Room, Hydrogen Fuel 202 Gaseous Hydrogen System 5801.1 Defined 202 Gas-Fueled or Liquid-Fueled Vehicles 314.4, 3108.13 Permit 105.5.30 Gates (see Doors) Means of egress 1010.4 Gates, Fire Apparatus Road 503.5, 503.6 Permit 105.6.12 General Requirements Chapter 3 Generators Acetylene 3508 Ethylene 2506 Ozone Gas 6005

Stationary 1203.1.1 Glass-Fiber-Reinforced Plastics Manufacturing 2409 Storage 2409.4 Ventilation 2409.6 Grade Floor Opening Defined 202

Grade Plane

Defined 202 Grandstand (see Bleachers) Group Home (Occupancy Group R-4) 203 Guards 202, 1104.6 Assembly seating 1030.1.1, 1030.17 Exceptions 1015.2 Glazing 1015.2.1 Height 1015.3 Mechanical equipment 1015.6 Openings 1015.4 Ramps 1012.9 Residential 1015.3

Roof access 1015.7 Screen porches 1015.5 Stairs 1015.2

Windows 1015.8

Gypsum Board Defined 202

Habitable Space Defined 202 Halogenated Extinguishing System Defined 202
CMC § 319.2 Medium relevance — show source text
Nonindustrial 319.2

Permits 105.5.1

Address Number (see Premises Identification) Administration

Alternative methods and materials

104.2.3, 501.4 Applicability 102 Approval 104.7.1, 401.2, 2307.2, 2308.2, 3103.2, 5706.4.7.1 Approved materials and equipment 104.9

INDEX

Emergencies 104.11 General 101

Inspections 104.7.2, 109 Maintenance 110 Means of appeals 112.1 Permits 104.3, 105 Right of entry 104.4 Unsafe buildings 115 Violations 113

Aerosol Container

Defined 202

Glass 5101.4

Plastic 5101.4, 5104.1.1 Aerosol Fire-Extinguishing Systems 904.13 Aerosol Product Warehouse 202, 5104.4 Aerosols Chapter 51 Aerosol cooking spray products 202 Aerosol product 202 Classification levels 5103.1 Classification of products Table 5103.1

Defined 202 Inside storage 5104 Manufacturing facilities 5107 Nonsegregated storage 5104.3.1, Table 5104.3.1 Outside storage 5105 Permit required 105.5.2 Retail display 5106 Segregated storage 5104.3.2, Table 5104.3.2

Agency Defined 202

Agent Defined 202 Agricultural Building (Occupancy Group U) Defined 202

Occupant load Table 1004.5 Agricultural Products 3703.4, 6001.1 Agro-Industrial Byproducts 2801.1 Defined 202

Facilities 2804.1, 2808.1 Aircraft Defueling 2006.5, 2006.18 Fueling 2006 Hangars 914.8.3 Maintenance 2004 Aircraft Motor-Vehicle Fuel-Dispensing Facility 2006.1, 2301.1 Defined 202 Aircraft Operation Area (AOA) Defined 202 Housekeeping in 2003.3 Smoking prohibited 2003.2 Aircraft-Related Occupancies, Fire Protection for 914.8 Air-Inflated Structures (see Tents and Other Membrane Structures) Defined 202

Permit 105.5.51 Airport Defined 202 Airport Traffic Control Towers 907.2.22, 914.8.1, 914.8.2

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INDEX

Refrigerant 608.13.4 Treatment system 608.13.5 Ammonium Nitrate 5601.1.5

Defined 202 Ammunition, Small Arms 202, 5606 Storage and handling 105.5.16, 5601.2.1, 5604 Amusement Building, Special (see Special Amusement Building) Amusement Park Structures (Assembly, Group A-5) Defined 202

Annunciator

Defined 202
CMC § 1030.1.1 Medium relevance — show source text
Means of Appeals 112 Means of Egress Chapter 10, 1104, 3312 Accessible means of egress 1009 Assembly 1030 Bleachers 1030.1.1 Buildings under construction or demolition 3312

Corridors 1020, 1104.17 Defined 202

Egress court 202, 1029.1 Elevators, escalators and moving walks 1003.7, 1104.2 Emergency escape and rescue 1031 Existing buildings 1104 Exit access 1016 Exit discharge 1028 Exits 1006

Guards 1015, 1104.6 Handrails 1014

Illumination 1008, 1104.3 Locks, latches 1010.2.4 Maintenance of 1032

Membrane structures 3103.11 Monitoring and recording of 1010.2.9 Obscuration of 316.4, 1032.4, 1032.6

Obstructions 1032.3, 1032.3.1 Outdoor assembly events 3107.3 Ramps 1012 Signs 1013 Sizing 1005 Stairways 1023, 1027 Tents 3103.11 Mechanical Refrigeration (see Refrigeration System) Mechanical Stocking Methods 3206.10.1.1 Defined 202 Medical Care (see Institutional Occupancies) 202, 203 Medical Gas Systems 5306.5 Medical Gases 5306 Membrane Structure Chapter 31 Defined 202 Membrane-Penetration Firestop System

202

Merchandise Pad 202, 1018.4 Metal Hydride and Metal Hydride Storage Systems 5807 Defined 202 Metal Hydride Storage System 202 Meters, Gas 605.8 Mezzanine 1004.2.2 Ceiling height 1003.2 Guards 1015.1

Occupant load 1004.2.2 Stairways 1011.14, 1019, 1023.2 Mills

Composite Board 2805 Plywood 2805 Process 2806

Veneer 2805

Mirrors 1010.1, 1032.6 Miscella 202, 3903.4 Mixtures (Hazardous materials) 5001.2.1 Mobile Food Preparation Vehicles 4106 Permit 105.5.34 Mobile Fueling 5706.5.4.5 Defined 202 Mobile Fueling, Hydrogen 202 Mobile Fueling Operations [see On-Demand Mobile Fueling Operations Modifications (of code requirements)] 104.2.4 Monitoring (sprinkler and fire alarm systems) 903.4.2, 907.6.6 Hazardous materials 5004.2.2.5

Termination of 907.6.6.3 Motion Picture Projection Rooms and Film
CMC § 1.11.0. Medium relevance — show source text
0||||X|||||||||||||||||||||

This state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.0.

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30 2025 CALIFORNIA PLUMBING CODE

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CHAPTER 2

DEFINITIONS

201.0 General.

201.1 Applicability. For the purpose of this code, the following terms have the meanings indicated in this chapter.

No attempt is made to define ordinary words, which are used in accordance with their established dictionary meanings, except where a word has been used loosely, and it is necessary to define its meaning as used in this code to avoid misunderstanding.

202.0 Definition of Terms.

202.1 General. The definitions of terms are arranged alphabetically according to the first word of the term.

203.0 – A –

ABS. Acrylonitrile-butadiene-styrene. Accepted Engineering Practice. That which conforms to technical or scientific-based principles, tests, or standards that are accepted by the engineering profession. Accessible. Where applied to a fixture, connection, appliance, or equipment, “accessible” means having access thereto, but which first may require the removal of an access panel, door, or similar obstruction. Accessible, Readily. Having a direct access without the necessity of removing a panel, door, or similar obstruction. Accessory Dwelling Unit. [HCD 1 & HCD 2] An attached or detached residential dwelling unit that provides complete independent living facilities for one or more per- sons and is located on a lot with a proposed or existing pri- mary residence. Accessory dwelling units shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the single-family or mul- tifamily dwelling is or will be situated. (See Government Code Section 65852.2.) Air Break. A physical separation which may be a low inlet into the indirect waste receptor from the fixture, appliance, or device indirectly connected. Air Gap, Drainage. The unobstructed vertical distance through the free atmosphere between the lowest opening from a pipe, plumbing fixture, appliance, or appurtenance conveying waste to the flood-level rim of the receptor. Air Gap, Water Distribution. The unobstructed vertical distance through the free atmosphere between the lowest opening from a pipe or faucet conveying potable water to the flood-level rim of a tank, vat, or fixture.

Alternate Water Source. Nonpotable source of water that includes but not limited to gray water, on-site treated nonpotable water, on-site treated nonpotable gray water, rainwater, and reclaimed (recycled) water. Anchors. See Supports. Anodeless Riser. An assembly of steel-cased plastic pipe used to make the transition between plastic piping installed

underground and metallic piping installed aboveground.

[NFPA 54:3.3.3] **Appliance.
CMC § 201.0 Medium relevance — show source text
C 201.0 Definitions.

C 201.1 General. For the purpose of this appendix, the following definitions shall apply: Branch Interval. A length of soil or waste stack corresponding in general to a story height, but in no case less than 8 feet (2438 mm), within which the horizontal branches from one floor or story of the building are connected to the stack. Engineered Plumbing System. A system designed for a specific building project with drawings and specifications indicating plumbing materials to be installed, all as prepared by a registered design professional.

C 301.0 Engineered Plumbing Systems. C 301.1 Inspection and Installation. In other than oneand two-family dwellings, the designer of the system is to provide periodic inspection of the installation on a schedule approved by the Authority Having Jurisdiction. Prior to the final approval, the designer shall verify to the Authority Having Jurisdiction that the installation is in accordance with the approved plans, specifications, and data and such amendments to it. The designer shall certify to the Authority Having Jurisdiction that the installation is in accordance with the applicable engineered design criteria. C 301.2 Owner Information. The designer of the system shall provide the building owner with information concerning the system, considerations applicable for subsequent modifications to the system, and maintenance requirements as applicable.

C 302.0 Water Heat Exchangers. C 302.1 Protection from Contamination. Heat exchangers used for heat transfer, heat recovery, or solar heating shall protect the potable water system from being contaminated by the heat-transfer medium.

C 302.2 Single-Wall Heat Exchangers. Single-wall heat exchangers shall comply with the following requirements:

(1) The heat-transfer medium is either potable water or contains essentially nontoxic transfer fluids having a toxicity rating or class of 1 (see Section 207.0).

(2) The pressure of the heat-transfer medium is maintained at less than the normal minimum operating pressure of the potable water system.

Exception: Steam in accordance with Section C 302.2(1) above.

(3) The equipment is permanently labeled to indicate that only additives recognized as safe by the FDA shall be used in the heat-transfer medium.

C 302.3 Alternate Designs. Other heat exchanger designs shall be permitted where approved by the Authority Having Jurisdiction.

C 303.0 Fixture Unit Values for Private or Private Use Bathroom Groups.

C 303.1 Fixtures. Table C 303.2 and Table C 303.3 reflect the fixture unit loads for the fixtures in bathrooms as groups, rather than as individual fixtures. Such fixtures include water closets, lavatories, and bathtubs or showers. The tables reflect diversity in the use of fixtures within a bathroom and between multiple bathrooms. C 303.2 Water Supply Fixture Unit Values. The listed water supply fixture unit values in Table C 303.2 reflect the load of entire bathroom groups on the cold water building supply. Individual hot and cold water branch piping to the fixtures shall be permitted to be sized in accordance with Chapter 6 and Appendix A. C 303.3 Drainage Fixture Unit Values. The listed drainage fixture unit values in Table C 303.3 reflect a load of entire bathroom groups on the sanitary drainage system. Where fixtures within bathrooms connect to different branches of the drainage system, the fixture unit values for the individual fixtures shall be used, as listed in Table 702.1 of this code.

CMC § 90.1 Medium relevance — show source text

[ASHRAE 90.1: TABLE 6.4.3.4.3]

Col1	OUTDOOR AIR INTAKE (CFM/ft2)	Col3	EXHAUST/RELIEF (CFM/ft2)	Col5
CLIMATE ZONE	NONMOTORIZED1	MOTORIZED	NONMOTORIZED3	MOTORIZED
0, 1, 2	0, 1, 2	0, 1, 2	0, 1, 2	0, 1, 2
Any height	20	4	20	4
3	3	3	3	3
Any height	20	10	20	10
4, 5B, 5C	4, 5B, 5C	4, 5B, 5C	4, 5B, 5C	4, 5B, 5C
Fewer than three stories	204	10	20	10
Three or more stories	204	10	204	10
5A, 6, 7, 8	5A, 6, 7, 8	5A, 6, 7, 8	5A, 6, 7, 8	5A, 6, 7, 8
Fewer than three stories	204	4	20	4
Three or more stories	204	4	204	4

For SI units: 1 square foot = 0.0929 m [2], 1 cubic foot per minute = 0.00047 m [3] /s, 1 cubic foot per minute = 0.4719 L/s, 1 cubic foot per minute per square foot = 5.08 [(L/s)/m [2] ], 1 inch water gauge = 0.249 kPa

Notes:

1 When tested in accordance with AMCA 500D.

2 Dampers smaller than 12 inches (305 mm) in height, width, or diameter need not be tested but shall be of the same design and construction as the smallest tested damper meeting the listed leakage rate requirement.

3 Nonmotorized dampers smaller than 24 inches (610 mm) in height, width, or diameter shall be permitted to have a leakage rate of 40 CFM/ft 2 [0.203 (m 3 /s)/m 2 ].

4 Where permitted by Section E 503.4.6.4.1, exception 2.

2025 CALIFORNIA MECHANICAL CODE 425

APPENDIX E

(2) Systems serving zones where humidity levels are required to be maintained with precision of not more than ±5 percent relative humidity to comply with applicable codes or accreditation standards or as approved by the Authority Having Jurisdiction.

[ASHRAE 90.1:6.4.3.6.2]

CMC § 503.5.11.3 Medium relevance — show source text
A + B - ( E/M ) ≥ 50% (Equation E 503.5.11.3)

Where:

A = Percentage that the exhaust and makeup airflow rates are capable of being reduced from design conditions.

B = Sensible energy recovery ratio.

E = Exhaust airflow rate through the heat recovery device at design conditions.

M = Makeup airflow rate of the system at design conditions.

(2) VAV laboratory exhaust and room supply systems that are required to have minimum circulation rates to be in accordance with the codes or

accreditation standards shall be capable of and configured to reduce zone exhaust and makeup airflow rates to the regulated minimum circulation values, or the minimum required to maintain pressurization relationship requirements. Systems serving nonregulated zones shall be capable of and configured to reduce exhaust and makeup airflow rates to 50 percent of the zone design values, or the minimum required to maintain pressurization relationship requirements.

(3) Direct makeup (auxiliary) air supply of 75 percent or more of the exhaust airflow rate, heated not more than 2°F (1°C) below room setpoint, cooled to not less than 3°F (2°C) above room setpoint, no humidification added, and no simultaneous heating and cooling are used for dehumidification control. [ASHRAE 90.1:6.5.7.3]

E 503.5.12 Radiant Heating Systems. Radiant heating systems shall be in accordance with Section E 503.5.12.1 through Section E 503.5.12.2.

E 503.5.12.1 Heating Unenclosed Spaces. Radiant heating shall be used when heating is required for unenclosed spaces.

Exception: Loading docks equipped with air curtains. [ASHRAE 90.1:6.5.8.1]

446 2025 CALIFORNIA MECHANICAL CODE

), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

APPENDIX E

to permit a determination of compliance by the building official and to indicate compliance with the requirements of this appendix. [ASHRAE 90.1:4.2.2.1] E 503.6.2 Supplemental Information. Supplemental information necessary to verify compliance with this appendix, such as calculations, worksheets, compliance forms, vendor literature, or other data, shall be made available where required by the Authority Having Jurisdiction. [ASHRAE 90.1:4.2.2.2]

E 503.6.3 Manuals. Operating and maintenance information shall be provided to the building owner. This information shall include, but not be limited to, the information specified in Section E 503.6.3.1, Section E 503.6.3.2, and Section E 503.6.5.2. [ASHRAE 90.1:4.2.2.3]

E 503.6.3.1 Required Information. Construction documents shall require that an operating manual and maintenance manual be provided to the building owner. The manuals shall include, at a minimum, the following:

(1) Submittal data stating equipment rating and selected options for each piece of equipment requiring maintenance.

(2) Operation manuals and maintenance manuals for each piece of equipment requiring maintenance. Required routine maintenance actions shall be clearly identified.

(3) Names and addresses of not less than one qualified service agency.
CMC § 1220.4.2 Medium relevance — show source text
8|1220.4.2 – 1220.4.6| |1221.7|1221.6| |1308.2 – 1308.4.1|1308.3 – 1308.5.1| |Table 1308.3.1|Table 1308.4.1| |1308.4.2|1308.5.2| |1308.4.2.2 – 1308.6.4|1308.5.2.1 – 1308.7.3| |Table 1308.4.6.2|Table 1308.5.6.2| |1308.6.5 – 1308.13.1|1308.7.7 – 1308.14.1| |1312.1.2 – 1312.1.3|1312.1.1 – 1312.1.2| |Chapter 17|Appendix F| |Chapter 18|Chapter 17| |D 103.2|D 103.1| |E 503.5.6.7|E 503.5.6.6| |E 503.5.7.2 – E 503.5.7.6|E 503.5.7.1 – E 503.5.7.5| |Table E 503.5.7.2|Table E 503.5.7.1| |Table E 503.5.7.6|Table E 503.5.7.5| |Table E 503.5.10.1.2(1)|Table E 503.5.10(1)| |Table E 503.5.10.1.2(2)|Table E 503.5.10(2)| |E 503.5.10.1.2|E 503.5.10| |E 503.5.10.2 – E 503.5.10.2.2|E 503.5.10.1 – E 503.5.10.1.2| |E 503.5.12.1|E 503.5.12| |E 503.5.12.2|E 503.5.12.1| |E 503.6.5.4|E 503.6.5.4.1|

xxii 2025 CALIFORNIA MECHANICAL CODE

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Uniform Mechanical Code Illustrated Training Manual:
CMC § 25.4 Medium relevance — show source text
= on center.
a. Cold-formed steel framing shall be minimum 33 ksi steel for 33 mil and 43 mil steel and 50 ksi steel for 54 mil steel or thicker.
b. Screws shall comply with the requirements of AISI S240.
c. Foam sheathing shall have a minimum compressive strength of 15 pounds per square inch in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
DR = design required, o.c. = on center.
a. Cold-formed steel framing shall be minimum 33 ksi steel for 33 mil and 43 mil steel and 50 ksi steel for 54 mil steel or thicker.
b. Screws shall comply with the requirements of AISI S240.
c. Foam sheathing shall have a minimum compressive strength of 15 pounds per square inch in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
DR = design required, o.c. = on center.
a. Cold-formed steel framing shall be minimum 33 ksi steel for 33 mil and 43 mil steel and 50 ksi steel for 54 mil steel or thicker.
b. Screws shall comply with the requirements of AISI S240.
c. Foam sheathing shall have a minimum compressive strength of 15 pounds per square inch in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
DR = design required, o.c. = on center.
a. Cold-formed steel framing shall be minimum 33 ksi steel for 33 mil and 43 mil steel and 50 ksi steel for 54 mil steel or thicker.
b. Screws shall comply with the requirements of AISI S240.
c. Foam sheathing shall have a minimum compressive strength of 15 pounds per square inch in accordance with ASTM C578 or ASTM C1289.|

[BS] 1404.5.2.2 Furred cladding attachment. Where steel or wood furring is used to attach cladding over foam sheathing, furring minimum fastening requirements to support the cladding weight shall be as specified in Table 1404.5.2.2. Where placed horizontally, wood furring shall be preservative-treated wood in accordance with Section 2303.1.9 or naturally durable wood and fasteners shall be corrosion resistant in accordance Section 2304.10.6. Steel furring shall have a minimum G60 galvanized coating.

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on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

EXTERIOR WALLS

|[BS] TABLE 1404.5.2.2—FURRING MINIMUM FASTENING REQUIREMENTS FOR
APPLICATION OVER FOAM PLASTIC SHEATHING TO SUPPORT CLADDING

CMC § 501.0 Medium relevance — show source text

THAN THREE BRANCH INTERVALS**| |DIAMETER OF
PIPE
(inches)|HORIZONTAL FIXTURE
BRANCH1|ONE STACK OF THREE
OR FEWER BRANCH
INTERVALS|TOTAL FOR STACK|TOTAL AT ONE BRANCH
INTERVAL| |11⁄2|3|4|8|2| |2|6|10|24|6| |21⁄2|12|20|42|9| |3|202|482|722|202| |4|160|240|500|90| |5|360|540|1100|200| |6|620|960|1900|350| |8|1400|2200|3600|600| |10|2500|3800|5600|1000| |12|3900|6000|8400|1500| |15|7000|6000|8400|1500|

For SI units: 1 inch = 25 mm

Notes:

1 Does not include branches of the building drain.

2 A maximum of two water closets or bathroom groups within each branch interval or more than six water closets or bathroom groups on the stack.

than the required size for the vent serving the drainage stack. The yoke vent connection shall be permitted to be a vertical extension of the drainage stack.

C 501.0 Vacuum Drainage Systems. C 501.1 General. This section regulates the design and installation provisions for vacuum waste drainage systems. Plans for vacuum waste drainage systems shall be submitted to the Authority Having Jurisdiction for approval and shall be considered an engineered designed system. Such plans shall be prepared by a registered design professional to per

form plumbing design work. Details are necessary to ensure compliance with the requirements of this section, together with a full description of the complete installation including quality, grade of materials, equipment, construction, and methods of assembly and installation. Components, materials, and equipment shall comply with standards and specifications listed in Chapter 17 of this code or approved by the Authority Having Jurisdiction and other national consensus standards applicable to plumbing systems and materials. Where such standards and specifications are not available, alternate materials and equipment shall be approved in accordance with Section 301.3.

390 2025 CALIFORNIA PLUMBING CODE

APPENDIX C

Col1	Col2	TABLE C 401.1 SIZE AND LENGTH OF VENTS	Col4	Col5	Col6	Col7	Col8	Col9	Col10	Col11
SIZE OF SOIL OR WASTE STACK (inches)	FIXTURE UNITS CONNECTED	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	DIAMETER OF VENT REQUIRED (inches)	**DIAMETER OF VENT REQUIRED

CMC § 9.1 Medium relevance — show source text

SHUTOFF VALVE APPLICATION	STANDARDS
Appliance shutoff valve up to1_/_2 psi	CSA/ANSI Z21.15/CSA 9.1
Appliance shutoff valve up to1_/_2 psi	ASME B16.44
Appliance shutoff valve up to1_/_2 psi	ASME B16.33 marked 125 G
Appliance shutoff valve up to1_/_2 psi	CSA/ANSI LC 4/CSA 6.32
Valve up to1_/_2 psi	ASME B16.44
Valve up to1_/_2 psi	ASME B16.33 marked 125 G
Valve up to1_/_2 psi	CSA/ANSI LC 4/CSA 6.32
Valve up to 2 psi	ASME B16.44 labeled 2G
Valve up to 2 psi	ASME B16.33 marked 125 G
Valve up to 2 psi	CSA/ANSI LC 4/CSA 6.32 with ANSI/ASME B16.44 labeled 2G or labeled 5G
Valve up to 2 psi	CSA/ANSI LC 4/CSA 6.32 with ANSI/ASME B16.33 marked 125 G
Valve up to 5 psi	ASME B16.44 labeled 5G
Valve up to 5 psi	ASME B16.33
Valve up to 5 psi	CSA/ANSI LC 4/CSA 6.32 with ANSI/ASME B16.44 marked 5G
Valve up to 5 psi	CSA/ANSI LC 4/CSA 6.32 with ANSI/ASME B16.33 marked 125 G
Valve up to 125 psi	ASME B16.33 marked 125 G
Valve up to 125 psi	CSA/ANSI LC 4/CSA 6.32 with ASME B16.33 marked 125 G

For SI Units: 1 pound-force per square inch = 6.8947 kPa

1308.13 Expansion and Flexibility. Piping systems shall be designed to prevent failure from thermal expansion or contraction. [NFPA 54:5.13.1]

CMC § 1018.4 Medium relevance — show source text
202

Merchandise Pad 202, 1018.4 Metal Hydride and Metal Hydride Storage Systems 5807 Defined 202 Metal Hydride Storage System 202 Meters, Gas 605.8 Mezzanine 1004.2.2 Ceiling height 1003.2 Guards 1015.1

Occupant load 1004.2.2 Stairways 1011.14, 1019, 1023.2 Mills

Composite Board 2805 Plywood 2805 Process 2806

Veneer 2805

Mirrors 1010.1, 1032.6 Miscella 202, 3903.4 Mixtures (Hazardous materials) 5001.2.1 Mobile Food Preparation Vehicles 4106 Permit 105.5.34 Mobile Fueling 5706.5.4.5 Defined 202 Mobile Fueling, Hydrogen 202 Mobile Fueling Operations [see On-Demand Mobile Fueling Operations Modifications (of code requirements)] 104.2.4 Monitoring (sprinkler and fire alarm systems) 903.4.2, 907.6.6 Hazardous materials 5004.2.2.5

Termination of 907.6.6.3 Motion Picture Projection Rooms and Film

306 Film storage 306.2 Motor Fuel-Dispensing Facilities (see also by type of fuel) 105.5.35, Chapter 23 Motor Vehicle Repair Booths 2311.8.4 Motorized Construction Equipment 3317 Moving Walks 1103.3 MSDS (see Safety Data Sheet) Multiple-Station Alarm Device Defined 202 Multiple-Station Smoke Alarm 907.2.11, 1103.8 Defined 202 Museums (Occupancy Group A-3) Occupant load Table 1004.5

Natural Barricade (see Barricade)

2025 CALIFORNIA FIRE CODE INDEX-11

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INDEX

Group A occupancies 308.3 Permit 105.5.37, 105.5.38, 308.2 Open Mall and Open Mall Building (see Covered Mall Building) 203 Open Parking Garage Defined 202 Open System (hazardous materials) Defined 202 Open-Air Assembly Seating 202, 1030 Open-Ended Corridor 903.3.1.2.2, 1027.6,

1104.22

Defined 202 Opening Protective 202 Operating Building Defined 202 Separation distances 5605.3 Operating Line 202 Operating Pressure Defined 202

Orders and Notices 104.6, 113.3.2 Organic Coatings Chapter 29 Defined 202

Electrical equipment and protection 2904

General 2903

Kettles 2906 Manufacture Chapter 29 Permit 105.5.39
CMC § 3303.5.3 Medium relevance — show source text
Location and records 3303.5.3,

3303.5.4

Personnel 3303.5.2 Places of assembly 403.11.1 Fireblocking Defined 202

Maintenance 707.1 Fire-Extinguishing Systems, Alternative 904

2025 CALIFORNIA FIRE CODE INDEX-7

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INDEX

Buildings under construction or demolition 3307

Defined 202

Nonodorized 2311.8.9 Prohibited for pipe cleaning 3309.2.1 Requirements 5803 Storage 3309.2, 5804 Use 3309.2, 5805 Flammable Liquids Chapter 57 Alcohol-based hand rub 202, 5705.5 Buildings under construction or demolition 3306

Classified locations 5703.1.1

Defined 202 Dispensing, use, mixing and handling 5705.3, 5705.3.8 In construction and demolition

operations 3306 Indoor storage 5704.3.3 Labeling and signage 5703.5 Motor fuel 2306 Outdoor storage 5704.4 Permit 105.5.18, 105.6.9 Portable fire extinguisher 5706.2.7 Special operations 5706 Tank storage 5704.2 Tents, air-supported, air-inflated and tensioned membrane structures

3108.13

Waste control 5706.3.3

Wholesale and resale use 5704.3.6

Flammable Material

Defined 202 Flammable Solid Chapter 59 Defined 202 Indoor storage 5904.1 Magnesium 5906 Outdoor storage 5906 Requirements 5903 Use 5905

Flammable Vapor Area Alarms 2404.10.1.1

Defined 202

Electrical equipment 2403.2.1 Ignition sources 2403.2 Ventilation 2404.9, 2405.7 Warning signs 2403.2.7 Flammable Vapors or Fumes Defined 202

Flash Point

Defined 202 Fleet Vehicle Motor Fuel-Dispensing Facility Defined 202

Tanks 2306.2.4.2

Flexible Joints 2306.7.9.1.4, 5703.6.9 Float 202

Floor Area, Gross 202, Table 1004.5 Floor Area, Net 202, Table 1004.5 Floor Construction 2404.5.2, 2404.5.3.3, 2404.5.5.1, 5004.12, 6304.1.3 Floor Covering (interior finish) 804.3 Floor Finishing 2410 Permit 105.5.19 Floor Identification Signs 1023.9, 1032.9, 1104.24 Floor Openings and Shafts 704, 1103.4 Flue Spaces 3208.3 Defined 202

Fluidized Bed

Defined 202
CMC § 403.4.6 Medium relevance — show source text
Fire command center 403.4.6, 911, 3007.7, 3008.6.6, 3008.7 Radio coverage 403.4.5, 916 Emergency Escape and Rescue Openings 1031 Required Table 1006.3.4(1), Table 1006.3.4(2), 1031.2 Window wells 1031.5, 1031.6 Emergency Housing Appendix Q Emergency Lighting 1008.2.4, 1204.5 Emergency Power 2702 Exit signs 1013.6.3, 2702.2 Hazardous 415.11.11, 2702.2 Higher education laboratory 428.3.6, 2702.2 High-rise 403.4.8, 2702.2 Means of egress illumination 1008.2.4, 2702.2

Semiconductor fabrication 415.11.11,

2702.2 Underground buildings 405.8, 2702.2 Emergency Responders Additional exit stairway 403.5.2 Elevators 403.6, 1009.2.1, 3002.4, 3003, 3007, 3008 Fire command center 403.4.6, 911, 3007.7, 3008.6.6, 3008.7 Mall access 402.7.5 Radio coverage 403.4.5, 918 Roof access 1011.12 Safety features 914 Emittance 202

Employee Accessibility for work areas 907.5.2.3.1, Chapter 11B Deputies to building official 103.3 Liability 104.8 Qualifications A101 Termination of employment A101.4 Toilet facilities Chapter 11B Encroachments Into the Public Right-of-Way Chapter 32 End-Jointed Lumber 2303.1.1.2

Relocated structures 101.4.7, D103.3 Rodentproofing Appendix F

INDEX-6 2025 CALIFORNIA BUILDING CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

Energy Efficiency Chapter 13, 101.4.6, 110.3.9 Enforcing Agency 202 Housing and Community Development 1.8 Engineer (see Definition for Registered Design Professional) Entrances 905.3.3, 1030.4, Chapter 11B Equipment Countertop Equipment 202 Essential Equipment 202 Fixed Equipment 202 Interim Equipment 202 Mobile Equipment 202 Movable Equipment 202 Other Equipment 202 Temporary Equipment 202 Equipment Platform 505.3 Area limitation 505.2.1, 505.2.1.1,
CMC § 1-24 Medium relevance — show source text
102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-24

103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-24

104 Duties and Powers of Building Official. . . . . . . . . . . 1-25

105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

106 Floor and Roof Design Loads . . . . . . . . . . . . . . . . . . . 1-29

107 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-29

108 Temporary Structures, Equipment and Systems . . . . . . . . . . . . . . . . . . . . . 1-31

109 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

110 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

111 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-33

112 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

113 Means of Appeals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

114 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

115 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

CHAPTER 3 OCCUPANCY CLASSIFICATION AND USE . . . . .3-1

301 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

302 Occupancy Classification and Use Designation . . . . 3-3
CMC § 907.5.2.3.1 Medium relevance — show source text
Employee Accessibility for work areas 907.5.2.3.1, Chapter 11B Deputies to building official 103.3 Liability 104.8 Qualifications A101 Termination of employment A101.4 Toilet facilities Chapter 11B Encroachments Into the Public Right-of-Way Chapter 32 End-Jointed Lumber 2303.1.1.2

Relocated structures 101.4.7, D103.3 Rodentproofing Appendix F

INDEX-6 2025 CALIFORNIA BUILDING CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

Energy Efficiency Chapter 13, 101.4.6, 110.3.9 Enforcing Agency 202 Housing and Community Development 1.8 Engineer (see Definition for Registered Design Professional) Entrances 905.3.3, 1030.4, Chapter 11B Equipment Countertop Equipment 202 Essential Equipment 202 Fixed Equipment 202 Interim Equipment 202 Mobile Equipment 202 Movable Equipment 202 Other Equipment 202 Temporary Equipment 202 Equipment Platform 505.3 Area limitation 505.2.1, 505.2.1.1,

505.3.1 Automatic sprinkler system 505.3.2 Equivalent Opening Factor Figure 705.8 Escalators 3004 Floor opening protection 712.1.3 Means of egress 1003.7 Essential Facilities (see Risk Category) Table 1604.5 Excavation, Grading and Fill 1804, 3304 Existing Building 101.4.7, 102.6, 705.3, 912.2.2, 915.1, 11B- 202 Additions D103.1

Alteration D103.1 Change of occupancy D103.2 Flood-resistant 104.3.1, Appendix G Historic 101.4.7

Relocated structures D103.3

Repairs 101.4.7, 116.5 Rodentproofing Appendix F Exit (see Means of Egress) 1022, 1023, 1024, 1025, 1026, 1027 Atrium 404.10, 1023.2 Boiler room 1006.2.1.1 Configuration 1007 Construction 713.2, 1019, 1023.2 Doorways 1007 Dwellings 1006.2.2.6, 1006.3.4.1 Electrical rooms 1006.2.2.4

Enclosure 707.3.2, 1023.2 Fire resistance 707.3, 1019, 1023.2

Furnace rooms 1006.2.2.1

Group H-5 415.11.6.6 High rise 403.5, 403.6, 1025 Horizontal 707.3.5, 1026 Incinerator rooms 1006.2.2.1
CMC § 1-22 Medium relevance — show source text
PART 2—ADMINISTRATION AND ENFORCEMENT . . . . . . . . . . . 1-22

103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-22

104 Duties and Powers of Code Official. . . . . . . . . . . . . . 1-22

105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

106 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-26

107 Temporary Uses, Equipment and Systems. . . . . . . 1-28

108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

110 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-30

111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

114 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

115 Unsafe Structures and Equipment . . . . . . . . . . . . . . 1-31

116 Emergency Measures . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

117 Demolition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

202 General Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

CHAPTER 3 PROVISIONS FOR ALL COMPLIANCE

METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

301 Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
CMC § 2-5 Medium relevance — show source text
CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

202 General Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

203 Occupancy Classification and Use . . . . . . . . . . . . . . . 2-40

CHAPTER 3 GENERAL REQUIREMENTS. . . . . . . . . . . . . . . . 3-3

301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

302 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

303 Asphalt Kettles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Combustible Waste Material . . . . . . . . . . . . . . . . . . . . . .3-4

305 Ignition Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 306 Motion Picture Projection Rooms and Film . . . . . . . . .3-7 307 Open Burning, Recreational Fires and Portable Outdoor Fireplaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 308 Open Flames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 309 Powered Industrial Trucks and Equipment . . . . . . . . .3-9 310 Smoking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 311 Vacant Premises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

312 Vehicle Impact Protection . . . . . . . . . . . . . . . . . . . . . . 3-12 313 Fueled Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 314 Indoor Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 315 General Storage .
CMC § 1-4 Medium relevance — show source text
1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-4

1.12 Board of Forestry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

DIVISION II SCOPE AND ADMINISTRATION . . . . . . . . . . . . . 1-15

PART 1—GENERAL PROVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

101 Scope and General Requirements. . . . . . . . . . . . . . 1-15

102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

PART 2—ADMINISTRATION AND ENFORCEMENT . . . . . . . . . . . 1-17

103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . 1-17

104 Duties and Powers of the Code Official . . . . . . . . . 1-17

105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

106 Construction Documents . . . . . . . . . . . . . . . . . . . . . 1-20

107 Temporary Uses, Equipment and Systems . . . . . . 1-21

108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

109 Inspection and Enforcement . . . . . . . . . . . . . . . . . . 1-22

110 Certificate of Completion . . . . . . . . . . . . . . . . . . . . . 1-24

111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

112 Means of Appeals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

113 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

CHAPTER 3 WILDLAND-URBAN INTERFACE AREAS . . . . 3-3
CMC § 1-26 Medium relevance — show source text
108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

110 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

114 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 115 Unsafe Structures or Equipment. . . . . . . . . . . . . . . . . 1-29

CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

202 General Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

203 Occupancy Classification and Use . . . . . . . . . . . . . . . 2-40

CHAPTER 3 GENERAL REQUIREMENTS. . . . . . . . . . . . . . . . 3-3

301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

302 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

303 Asphalt Kettles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Combustible Waste Material . . . . . . . . . . . . . . . . . . . . . .3-4
CMC § 409.6.1 Medium relevance — show source text
1, 409.6.1| |ASME A112.19.12-2014
(R2019)|Wall Mounted, Pedestal Mounted, Adjustable, Elevating, Tilt-
ing, and Pivoting Lavatory, Sink, and Shampoo Bowl Carrier
Systems and Drain Waste Systems|Fixtures|407.1, 420.1| |ASME A112.19.14-2013
(R2018)|Six-Liter Water Closets Equipped with a Dual Flushing Device|Fixtures|411.2.1| |ASME A112.19.15-2012
(R2017)|Bathtubs/Whirlpool Bathtubs with Pressure Sealed Doors|Fixtures|409.1| |ASME A112.19.19-2016
(R2021)|Vitreous China Nonwater Urinals|Fixtures|412.1, 412.1.2| |ASSE 1002-2020/ASME
A112.1002-2020/CSA
B125.12-2020|Anti-Siphon Fill Valves for Water Closet Tanks|Backflow Protection|413.3, Table 603.2| |ASME A112.36.2M-1991
(R2017)|Cleanouts|DWV Components|Table 707.2, 707.4.1| |ASSE 1016-2017/ASME
A112.1016-2017/CSA
B125.16-2017|Automatic Compensating Valves for Individual Showers and
Tub/Shower Combinations|Valves|408.4, 408.4.2(1)| |ASSE 1037-2020/ASME
A112.1037-2020/CSA
B125.37-2020|Pressurized Flushing Devices for Plumbing Fixtures|Backflow Protection|413.2| |ASSE 1070-2020/ASME
A112.1070-2020/CSA
B125.70-2020|Water Temperature Limiting Devices|Valves|407.3(1), 409.4(1),
410.3(1), 417.7(1),
417.8| |ASME B1.20.1-2013
(R2018)|Pipe Threads, General Purpose (Inch)|Joints|605.1.5, 605.2.3,
605.5.2, 605.12.3,
705.1.3, 705.3.4,
705.4.2, 705.6.3,
1208.5.8, 1322.5(2)| |ASME B16.1-2020|Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125,
and 250|Fittings|1208.5.11.1|

336 2025 CALIFORNIA PLUMBING CODE

), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

REFERENCED STANDARDS

TABLE 1701.1 (continued) REFERENCED STANDARDS

STANDARD NUMBER STANDARD TITLE APPLICATION REFERENCED
SECTION

ASME B16.3-2021 Malleable Iron Threaded Fittings: Classes 150 and 300 Fittings Table 604.1,
Table 701.
California Mechanical Code Medium relevance — show source text

74
127
164
187
207
246|3004
2004
1981
1944
1908
1873
1807|1550
1310
1289
1254
1220
1185
1130|0
98
164
209
237
260
305|4252
2786
2759
2716
2674
2633
2555|2170
1800
1775
1733
1692
1650
1585| |50|0
2
5
10
15
20
30|0
26
65
86
100
113
141|1297
975
960
935
911
888
844|708
615
605
589
572
556
522|0
33
77
101
117
131
161|1730
1276
1259
1230
1203
1176
1125|952
813
798
773
747
722
670|0
41
90
118
136
151
183|2231
1620
1600
1567
1536
1505
1446|1195
1010
996
972
948
924
876|0
66
118
154
177
195
232|3441
2431
2406
2366
2327
2288
2214|1825
1513
1495
1466
1437
1408
1349|0
86
151
196
222
244
287|4934
3409
3380
3332
3285
3239
3150|2550
2125
2102
2064
2026
1987
1910| |100|0
2
5
10
15
20
30
50|0
21
60
80
93
105
131
197|1411
1155
1141
1118
1095
1073
1029
944|770
700
692
679
666
653
627
575|0
25
71
94
109
122
149
217|1908
1536
1519
1492
1465
1438
1387
1288|1040
935
926
910
895
880
849
787|0
30
82
108
126
141
170
241|2491
1975
1955
1923
1892
1861
1802
1688|1310
1170
1159
1142
1124
1107
1071
1000|0
CMC § 1.9.1 Medium relevance — show source text
[DSA-AC] In addition to the requirements of this section, means of egress, which provide access to, or egress from, buildings or facilities where accessibility is required for applications listed in Section 1.9.1 regulated by the Division of the State Architect-Access Compliance, shall also comply with Chapter 11A or Chapter 11B, Section 403, as applicable.

[BE] 1018.1 General. Aisles and aisle accessways serving as a portion of the exit access in the means of egress system shall comply with the requirements of this section. Aisles or aisle accessways shall be provided from all occupied portions of the exit access that contain seats, tables, furnishings, displays and similar fixtures or equipment. The minimum width or required capacity of aisles shall be unobstructed.

Exception: Encroachments complying with Section 1005.7.

[California Code of Regulations, Title 19, Division 1, §3.06(a)] Bonding of Chairs and Spacing of Tables.

(a) Bonding of chairs. In every Group A and Group E occupancy, all loose seats, folding chairs or similar seating facilities that are not fixed to the floor shall be bonded together in groups of not less than three.

Exceptions: (1) When not more than 200 such seats, chairs or facilities are provided, bonding thereof may be deleted. (2) The bonding of chairs shall not be required when tables are provided, as when the occupancy is used for dining or similar

purposes.

10-42 2025 CALIFORNIA FIRE CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

MEANS OF EGRESS

(3) Upon approval of the enforcing agency, the bonding of chairs shall not be required when the placement and location of such chairs does not obstruct any required exit or any line of egress toward required exits and does not constitute a fire hazard as defined in California Code of Regulations, Title 19, Division 1, Section 3.14.

[California Code of Regulations, Title 19, Division 1, §3.06(b)] Bonding of Chairs and Spacing of Tables.

(b) Spacing of Tables. In occupancies having rectangular conference or banquet-type tables, such tables shall be placed not less than 54 inches apart and not less than 36 inches from walls.

[BE] 1018.2 Aisles in assembly spaces. Aisles and aisle accessways serving a room or space used for assembly purposes shall comply with Section 1030.

[BE] 1018.3 Aisles in Groups B and M. In Group B and M occupancies, the minimum clear aisle width shall be determined by Section 1005.1 for the occupant load served, but shall be not less than that required for corridors by Section 1020.3.

Exception: Nonpublic aisles serving less than 50 people and not required to be accessible by Chapter 11A or 11B of the California Building Code need not exceed 28 inches (711 mm) in width.
CMC § 100.0 Medium relevance — show source text
Exception 1 to Section 100.0(f): If one occupancy constitutes at least 80 percent of the conditioned floor area of the building, the entire building envelope, HVAC and water heating may be designed to comply with the provisions of Part 6 applicable to that occupancy, provided that the applicable lighting requirements in Sections 140.6 through 140.8, 150.0(k), or 160.5 and 170.2(e) are met for each occupancy and space, and mandatory measures in Sections 110.0 through 130.5, 150.0, and 160.0 through 160.9 are met for each occupancy and space.

Exception 2 to Section 100.0(f): If one occupancy constitutes at least 90 percent of the combined conditioned plus unconditioned floor area of the building, the entire building indoor lighting may be designed to comply with only the lighting provisions of Part 6 applicable to that occupancy.

(g) Administrative requirements. Administrative requirements relating to permit requirements, enforcement by the Commission, locally adopted energy standards, interpretations, claims of exemption, approved calculation methods, rights of appeal, and certification and labeling requirements of fenestration products and roofing products are specified in California Code of Regulations, Title 24, Part 1, Sections 10-101 to 10-114.

(h) Certification requirements for manufactured equipment, products and devices. Part 6 limits the installation of manufactured equipment, products and devices to those that have been certified as specified by Sections 110.0 and 110.1. Requirements for manufactured equipment, products, and devices, when not specified in Title 24 Part 6, are specified in California Code of Regulations, Title 20, Sections 1601–1609.

Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code .

SECTION 100.1 — DEFINITIONS AND RULES OF CONSTRUCTION

(a) Rules of Construction.
1. Where the context requires, the singular includes the plural and the plural includes the singular.
2. The use of “and” in a conjunctive provision means that all elements in the provision must be complied with or must exist to make the provision applicable. Where compliance with one or more elements suffices, or where existence of one or more elements makes the provision applicable, “or” (rather than “and/or”) is used.
3. “Shall” is mandatory and “may” is permissive.
(b) Definitions. Terms, phrases, words and their derivatives in Part 6 shall be defined as specified in Section 100.1. Terms, phrases, words and their derivatives not found in Section 100.1 shall be defined as specified in the “Definitions” chapters of Title 24, Parts 1 through 5 of the California Code of Regulations. Where terms, phrases, words and their derivatives are not defined in any of the references above, they shall be defined as specified in Webster’s Third New International Dictionary of the English Language, Unabridged (1961 edition, through the 2002 addenda), unless the context requires otherwise.
CMC § 406.2.2 Medium relevance — show source text
406.2.2 Clear height. The clear height of each floor level in vehicle and pedestrian traffic areas shall be not less than 7 feet (2134 mm). Canopies under which fuels are dispensed shall have a clear height in accordance with Section 406.7.2. [DSA-AC, HCD 1-AC] The clear height of vehicle and pedestrian areas required to be accessible shall comply with Chapter 11A or 11B, as applicable.

Exception: A lower clear height is permitted for a parking tier in mechanical-access open parking garages where approved by the building official.

[BE] 406.2.3 Accessible parking spaces. Where parking is provided, accessible parking spaces, access aisles and vehicular routes serving accessible parking shall be provided in accordance with Chapter 11A or Chapter 11B, as applicable.

406.2.4 Floor surfaces. Floor surfaces shall be of concrete or similar approved noncombustible and nonabsorbent materials. The area of floor used for the parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway. The surface of vehicle fueling pads in motor fuel-dispensing facilities shall be in accordance with Section 406.7.1.

Exceptions:
1. Asphalt parking surfaces shall be permitted at ground level for public parking garages and private carports.
2. Slip-resistant, nonabsorbent, interior floor finishes having a critical radiant flux not more than 0.45 W/cm [2], as determined by ASTM E648 or NFPA 253, shall be permitted in repair garages.
406.2.5 Sleeping rooms. Openings between a motor vehicle-related occupancy and a room used for sleeping purposes shall not be permitted.

406.2.6 Fuel dispensing. The dispensing of fuel shall only be permitted in motor fuel-dispensing facilities in accordance with Section 406.7.

406.2.7 Electric vehicle charging stations and systems. Where provided, electric vehicle charging systems shall be installed in accordance with the California Electrical Code and the California Green Building Standards Code . Electric vehicle charging system equipment shall be listed and labeled in accordance with UL 2202. Electric vehicle supply equipment shall be listed and labeled in accordance with UL 2594. Accessibility to electric vehicle charging stations shall be provided in accordance with Chapters 11A and/or 11B.

406.2.8 Mixed occupancies and uses. Mixed uses shall be allowed in the same building as public parking garages and repair garages in accordance with Section 508.1. Mixed uses in the same building as an open parking garage are subject to Sections 402.4.2.3, 406.5.11, 508.1, 510.3, 510.4 and 510.7.

406.2.9 Equipment and appliances. Equipment and appliances shall be installed in accordance with Sections 406.2.9.1 through 406.2.9.3 and the California Mechanical Code, California Plumbing Code and California Electrical Code.
CMC § 1305.2.3.3 Medium relevance — show source text
2, 1305.2.3.3, 1305.2.4.1, 1305.2.5, 1305.2.5.1, 1305.2.6, 1305.2.7.1, 1305.2.8, 1305.2.9, 1305.2.9.1, 1305.2.10, 1305.2.10.1, 1305.2.11, 1305.2.11.1, 1305.2.12.1, 1305.2.13, Table 1305.2.15, 1305.2.15.1, 1305.2.16.1, 1305.2.17, 1305.2.17.1, 1305.2.18, 1305.2.18.1, 1305.2.19, Table 1305.2.19, 1305.2.20, 1305.2.20.1, 1307.1.1, 1401.2, 1402.1, 1402.2, 1402.2.1, 1402.3, 1402.4, 1402.5, 1402.6, 1501.5, 1504.1.1, 1504.1.4.1, 1504.1.7, 1509.1, 1509.3, 1510.1

CEC — 25 : California Energy Code

302.2, 702.7, 708.1, 809.1, 907.1, 1104.1

CFC—25: California Fire Code

101.2.2, 101.4.2, 301.3.1, 302.2, 307.1, 308.1, 802.2.1, 802.2.3, 803.2.3, 803.4.1.1, 803.4.1.2, 803.4.1.3, 803.4.1.4, 803.4.1.5, 803.4.1.6, Table 804.5.1.1(1), 904.1.5, 1011.6.1.1, 1303.1.2, 1305.2.8.1, 1305.2.14, 1305.2.14.1, 1401.2, 1501.1, 1501.5, 1502.1, 1502.1.1, 1502.2, 1502.3, 1504.1, 1507.1, 1507.2

CMC—25: California Mechanical Code

302.2, 702.7, 807.1, 902.1.1, 1008.1, 1305.2.7.1, 1305.2.8, 1305.2.8.1

CPC—25: California Plumbing Code

302.2, 408.1, 702.7, 1009.1, 1009.2, 1009.3, 1009.5, 1302.1.6, 1503.1
CMC § 2.2.6 Medium relevance — show source text
Tabulated values are for clear-span roof supported solely by exterior bearing walls.
b. Spans are based on No. 2 Grade lumber of Douglas fir-larch, Southern pine, hem-fir and spruce-pine-fir for repetitive (three or more) members.
c. Ratio of backspan to cantilever span shall be not less than 3:1.
d. Connections capable of resisting the indicated uplift force shall be provided at the backspan support.
e. Uplift force is for a backspan to cantilever span ratio of 3:1. Tabulated uplift values are permitted to be reduced by multiplying by a factor equal to 3 divided by the actual
backspan ratio provided (3/backspan ratio).
f. See Section R301.2.2.6, Item 1, for additional limitations on cantilevered floor joists for detached one- and two-family dwellings in Seismic Design Category D0, D1 or D2 and
townhouses in Seismic Design Category C, D0, D1 or D2.
g. Linear interpolation shall be permitted for building widths and ground snow loads other than shown.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa.
a. Tabulated values are for clear-span roof supported solely by exterior bearing walls.
b. Spans are based on No. 2 Grade lumber of Douglas fir-larch, Southern pine, hem-fir and spruce-pine-fir for repetitive (three or more) members.
c. Ratio of backspan to cantilever span shall be not less than 3:1.
d. Connections capable of resisting the indicated uplift force shall be provided at the backspan support.
e. Uplift force is for a backspan to cantilever span ratio of 3:1. Tabulated uplift values are permitted to be reduced by multiplying by a factor equal to 3 divided by the actual
backspan ratio provided (3/backspan ratio).
f. See Section R301.2.2.6, Item 1, for additional limitations on cantilevered floor joists for detached one- and two-family dwellings in Seismic Design Category D0, D1 or D2 and
townhouses in Seismic Design Category C, D0, D1 or D2.
g. Linear interpolation shall be permitted for building widths and ground snow loads other than shown.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa.
a. Tabulated values are for clear-span roof supported solely by exterior bearing walls.
b. Spans are based on No. 2 Grade lumber of Douglas fir-larch, Southern pine, hem-fir and spruce-pine-fir for repetitive (three or more) members.
c. Ratio of backspan to cantilever span shall be not less than 3:1.
d. Connections capable of resisting the indicated uplift force shall be provided at the backspan support.
e. Uplift force is for a backspan to cantilever span ratio of 3:1. Tabulated uplift values are permitted to be reduced by multiplying by a factor equal to 3 divided by the actual
backspan ratio provided (3/backspan ratio).
f.
CMC § 407.4.6.2 Medium relevance — show source text
Exceptions:
1. Where the elevator panel serves more than 16 openings and a parallel approach is provided, buttons with floor designations shall be permitted to be 54 inches ( 1372 mm) maximum above the finish floor.
2. In existing elevators, car control buttons with floor designations shall be permitted to be located 54 inches ( 1372 mm) maximum above the finish floor where a parallel approach is provided.
11B- 407.4.6.2 Buttons. Car control buttons with floor designations shall comply with Section 11B- 407.4.6.2.

Exception: Reserved. 11B- 407.4.6.2.1 Size and shape. Buttons shall have square shoulders, be [3] / 4 inch ( 19.1 mm) minimum in their smallest dimension and be raised [1] / 8 inch (3.2 mm) plus or minus [1] / 32 inch (0.8 mm) above the surrounding surface.

11B- 407.4.6.2.2 Arrangement. Buttons shall be arranged with numbers in ascending order. When two or more columns of buttons are provided they shall read from left to right.

11B-407.4.6.2.3 Illumination. Car control buttons shall be illuminated.

11B-407.4.6.2.4 Operation. Car control buttons shall be activated by a mechanical motion that is detectable.

11B- 407.4.6.3 Keypads. Car control keypads shall be in a standard telephone keypad arrangement and shall comply with Section 11B- 407.4.7.2.

11B- 407.4.6.4 Emergency controls. Emergency controls shall comply with Section 11B- 407.4.6.4.

11B- 407.4.6.4.1 Height. Emergency control buttons shall have their centerlines 35 inches ( 889 mm) minimum above the finish floor.

11B- 407.4.6.4.2 Location. Emergency controls, including the emergency alarm, shall be grouped at the bottom of the panel.

11B- 407.4.7 Designations and indicators of car controls. Designations and indicators of car controls shall comply with Section 11B- 407.4.7.

Exception: In existing elevators, where a new car operating panel complying with Section 11B- 407.4.7 is provided, existing car operating panels may remain operational and shall not be required to comply with Section 11B- 407.4.7.

11B- 407.4.7.1 Buttons. Car control buttons shall comply with Section 11B- 407.4.7.1.

11B- 407.4.7.1.1 Type. Control buttons shall be identified by raised characters or symbols, white on a black background, complying with Section 11B-703.2 and Braille complying with Section 11B-703.3.
California Mechanical Code Medium relevance — show source text

10|42
32
29
24|76
61
56
49|126
102
95
86|185
154
141
131|252
210
194
180|340
284
264
250|542
451
430
406|815
680
648
625| |10|0
2
5
10
15|45
35
32
27
NA|84
67
61
54
46|138
111
104
94
84|202
168
153
143
130|279
233
215
200
186|372
311
289
274
258|606
505
480
455
432|912
760
724
700
666| |15|0
2
5
10
15
20|49
39
35
30
NA
NA|91
72
67
58
50
NA|151
122
110
103
93
82|223
186
170
158
144
132|312
260
240
223
207
195|420
350
325
308
291
273|684
570
540
514
488
466|1040
865
825
795
760
726| |20|0
2
5
10
15
20|53
42
38
32
NA
NA|101
80
74
65
55
NA|163
136
123
115
104
91|252
210
192
178
163
149|342
286
264
246
228
214|470
392
364
345
326
306|770
641
610
571
550
525|1190
990
945
910
870
832| |30|0
2
5
10
15
20
30|56
44
NA
NA
NA
NA
NA|108
84
78
68
NA
NA
NA|183
148
137
125
113
99
NA|276
230
210
196
177
163
NA|384
320
296
274
258
240
192|529
441
410
388
366
344
295|878
730
694
656
625
596
540|1370
1140
1080
1050
1000
960
890| |50|0
2
5
CMC § 1.11. Medium relevance — show source text
22 (b)]_||||X||||||||||||||||||||
- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
2025 CALIFORNIA FIRE CODE 61-1

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61-2 2025 CALIFORNIA FIRE CODE

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61 LIQUEFIED PETROLEUM GASES

User notes:

About this chapter: Chapter 61 provides requirements for the safe handling, storing and use of LP-gas to reduce the possibility of damage to containers, accidental releases of LP-gas, and exposure of flammable concentrations of LP-gas to ignition sources. LP-gas (notably propane) is well-known as a camping fuel for cooking, lighting, heating and refrigerating and also remains a popular standby fuel supply for auxiliary generators, as well as being widely used as an alternative motor vehicle fuel. Its characteristic as a clean-burning fuel has resulted in the addition of propane dispensers to service stations throughout the country. Dispensing LP-gas into motor vehicles is addressed by Chapter 23.

SECTION 6101—GENERAL

6101.1 Scope. Storage, handling and transportation of liquefied petroleum gas (LP-gas) and the installation of LP-gas equipment pertinent to systems for such uses shall comply with this chapter and NFPA 58. Properties of LP-gases shall be determined in accordance with Appendix B of NFPA 58.

[California Code of Regulations, Title 19, Division 1, §3.22(a) and (c)] Liquefied Petroleum Gas.

(a) When liquefied petroleum gas is used, the storage and handling thereof shall conform to the appropriate provisions referenced in California Code of Regulations, Title 19, Division 1, Sections 3.02 and 3.03.

(c) California Code of Regulations, Title 8, Section 475 is hereby adopted as a part of Title 19, Division 1 regulations.

6101.2 Permits. Permits shall be required as set forth in Sections 105.5 and 105.6.

Distributors shall not fill an LP-gas container for which a permit is required unless a permit for installation has been issued for that location by the fire code official.

6101.3 Construction documents. Where a single LP-gas container is more than 2,000 gallons (7570 L) in water capacity or the aggregate water capacity of LP-gas containers is more than 4,000 gallons (15 140 L), the installer shall submit construction documents for such installation.

SECTION 6102—DEFINITIONS

6102.1 Definitions. The following terms are defined in Chapter 2:

LIQUEFIED PETROLEUM GAS (LP-gas).

LP-GAS CONTAINER.

SECTION 6103—INSTALLATION OF EQUIPMENT
California Mechanical Code Medium relevance — show source text

81
135
172
195
217|2637
1694
1674
1641
1609
1578|1350
1100
1079
1045
1018
990|0
107
174
220
248
273|3701
2343
2320
2282
2245
2210|1900
1520
1498
1460
1425
1390| |30|0
2
5
10
15
20
30|0
33
69
91
105
119
149|1173
826
811
788
765
743
702|650
535
524
507
490
473
444|0
42
82
107
124
139
171|1548
1072
1055
1028
1002
977
929|855
700
688
668
648
628
594|0
54
96
125
143
160
195|1977
1351
1332
1301
1272
1243
1189|1060
865
851
829
807
784
745|0
74
127
164
187
207
246|3004
2004
1981
1944
1908
1873
1807|1550
1310
1289
1254
1220
1185
1130|0
98
164
209
237
260
305|4252
2786
2759
2716
2674
2633
2555|2170
1800
1775
1733
1692
1650
1585| |50|0
2
5
10
15
20
30|0
26
65
86
100
113
141|1297
975
960
935
911
888
844|708
615
605
589
572
556
522|0
33
77
101
117
131
161|1730
1276
1259
1230
1203
1176
1125|952
813
798
773
747
722
670|0
41
90
118
136
151
183|2231
1620
1600
1567
1536
1505
1446|1195
1010
996
972
948
924
876|0

STANDARD NUMBER	STANDARD TITLE	APPLICATION	REFERENCED SECTION
ASME B16.3-2021	Malleable Iron Threaded Fittings: Classes 150 and 300	Fittings	Table 604.1, Table 701.

CMC § 2-1 Medium relevance — show source text

CHAPTER 2 – DEFINITIONS

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

Adopting agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	OSHPD	Col11	Col12	Col13	Col14	Col15	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting agency	BSC	BSC- CG	SFM	1	2	1/AC	AC	SS	1	1R	2	3	4	5	5	5	5	5	5	5	5	5
Adopt entire CA chapter		X		X				X
Adopt entire chapter as amended (amended sections listed below)									X		X		X
Adopt only those sections that are listed below
Chapter/Section
201
CALIFORNIA RESIDENTIAL CODE									†		†		†
LOW-RISE RESIDENTIAL BUILDING									†		†		†
PLANTS									†		†		†
RESIDENTIAL BUILDING									†		†		†
RESILIENT FLOORING									†		†		†

The state agency does not adopt sections identified by the following symbol: †.

2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 2-1

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2-2 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

2 DEFINITIONS

SECTION 201—GENERAL

201.1 Scope. Unless otherwise stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this chapter.

201.2 Interchangeability. Words used in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.

201.3 Terms defined in other documents. Where terms are not defined in this code and are defined in the California Building Stan- dards Code or other referenced documents, such terms shall have the meanings ascribed to them as in those publications.

201.4 Terms not defined. Where terms are not defined as specified in this section, such terms shall have ordinarily accepted meanings such as the context implies.

SECTION 202—DEFINITIONS

CMC § 1.4 Medium relevance — show source text

340 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

TABLE 1701.1 (continued) REFERENCED STANDARDS

STANDARD NUMBER	STANDARD TITLE	APPLICATION	REFERENCED SECTION
ASTM C1540-2020	Standard Specification for Heavy-Duty Shielded Couplings Joining Hubless Cast Iron Soil Pipe and Fittings	Joints	705.2.2
ASTM C1563-2008 (R2021)	Standard Test Method for Gaskets for Use in Connection with Hub and Spigot Cast Iron Soil Pipe and Fittings for Sanitary Drain, Waste, Vent, and Storm Piping Applications	Joints	705.2.2
ASTM C1822-2021	Standard Specification for Insulating Covers on Accessible Lavatory Piping	Miscellaneous	403.3
ASTM D1253-2014	Standard Test Method for Residual Chlorine in Water	Miscellaneous	1506.10.6, 1603.4.1
ASTM D1785-2021a	Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120	Piping	Table 604.1, Table 701.

CMC § 2-4 Medium relevance — show source text
2-4 2025 CALIFORNIA FIRE CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

2 DEFINITIONS

User notes:

About this chapter: Codes, by their very nature, are technical documents. Every word, term and punctuation mark can add to or change the meaning of a technical requirement. It is necessary to maintain a consensus on the specific meaning of each term contained in the code. Chapter 2 performs this function by stating clearly what specific terms mean for the purpose of the code. General definitions are located in Section 202 and occupancy classification definitions are located in Section 203.

SECTION 201—GENERAL

201.1 Scope. Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this chapter.

201.2 Interchangeability. Words used in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.

201.3 Terms defined in other codes. Where terms are not defined in this code and are defined in the California Building Code, Cali- fornia Mechanical Code or California Plumbing Code, such terms shall have the meanings ascribed to them as in those codes.

201.4 Terms not defined. Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. Merriam Webster’s Collegiate Dictionary, 11th Edition, shall be considered as providing ordinarily accepted meanings.

SECTION 202—GENERAL DEFINITIONS

[BG] 24-HOUR BASIS. The actual time that a person is an occupant within a facility for the purpose of receiving care. It shall not include a facility that is open for 24 hours and is capable of providing care to someone visiting the facility during any segment of the 24 hours.

3D PRINTER. A machine used in the additive manufacturing process for fabricating objects through the deposition of a material using a print head, nozzle or other printer technology.

[M] ACCESS (TO). That which enables a device, appliance or equipment to be reached by ready access or by a means that first requires the removal or movement of a panel or similar obstruction [see also “Ready access (to)”].

[BE] ACCESSIBLE MEANS OF EGRESS. A continuous and unobstructed way of egress travel from any accessible point in a building or facility to a public way.

[BE] ACCESSIBLE ROUTE. A continuous, unobstructed path that complies with Chapter 11 of the California Building Code .

ACTIVE RF EMITTING DEVICE. Any type of circuit component that requires an AC or DC power source with the ability to electrically control electron flow and/or amplification of RF signal, including but not limited to signal boosters, repeaters, bidirectional amplifiers and fiber-distributed antenna systems.

ADDITIVE MANUFACTURING. A process of joining materials to make objects from 3D model data, usually layer upon layer, sometimes referred to as 3D printing. This code recognizes two types of additive manufacturing:

Industrial additive manufacturing. 3D printing operations that typically utilize combustible powders or metals, an inert gas supply, a combustible dust collection system, or that create a hazardous (classified) location area or zone outside the equipment.
CMC § 203.7.3 Medium relevance — show source text
Title 19, Division 1]||||X|||||||||||||||||||| |Chapter / Section|||||||||||||||||||||||| |203.7.3|||X||||||||||||||||||||| |203.7.3.6 - 203.7.3.8|||X||||||||||||||||||||| |203.7.4|||X||||||||||||||||||||| |203.7.4.1|||X||||||||||||||||||||| |203.9.1|||X||||||||||||||||||||| |203.9.2|||X||||||||||||||||||||| |203.9.2.1|||X||||||||||||||||||||| |203.9.2.2|||X||||||||||||||||||||| |203.9.3|||X||||||||||||||||||||| |203.9.3.3|||X||||||||||||||||||||| |203.9.4|||X||||||||||||||||||||| |203.12|||X||||||||||||||||||||| |203.13|||X|||||||||||||||||||||
- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
2-4 2025 CALIFORNIA FIRE CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

2 DEFINITIONS

User notes:

About this chapter: Codes, by their very nature, are technical documents. Every word, term and punctuation mark can add to or change the meaning of a technical requirement. It is necessary to maintain a consensus on the specific meaning of each term contained in the code. Chapter 2 performs this function by stating clearly what specific terms mean for the purpose of the code. General definitions are located in Section 202 and occupancy classification definitions are located in Section 203.

SECTION 201—GENERAL

201.1 Scope. Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this chapter.

201.2 Interchangeability. Words used in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.

201.3 Terms defined in other codes. Where terms are not defined in this code and are defined in the California Building Code, Cali- fornia Mechanical Code or California Plumbing Code, such terms shall have the meanings ascribed to them as in those codes.

201.4 Terms not defined. Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. Merriam Webster’s Collegiate Dictionary, 11th Edition, shall be considered as providing ordinarily accepted meanings.

SECTION 202—GENERAL DEFINITIONS
CMC § 6.3.1. Medium relevance — show source text
6.3.1.|The fastening system shall resist the wind forces in Section 1609.6.3.1.| |130|0-60|The fastening system shall resist the wind forces in Section 1609.6.3.1.|The fastening system shall resist the wind forces in Section 1609.6.3.1.|The fastening system shall resist the wind forces in Section 1609.6.3.1.| |All|> 60|The fastening system shall resist the wind forces in Section 1609.6.3.1.|The fastening system shall resist the wind forces in Section 1609.6.3.1.|The fastening system shall resist the wind forces in Section 1609.6.3.1.| |INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGSd, e
(Installations on spaced/solid sheathing with battens or spaced sheathing)|INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGSd, e
(Installations on spaced/solid sheathing with battens or spaced sheathing)|INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGSd, e
(Installations on spaced/solid sheathing with battens or spaced sheathing)|INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGSd, e
(Installations on spaced/solid sheathing with battens or spaced sheathing)|INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGSd, e
(Installations on spaced/solid sheathing with battens or spaced sheathing)| |Maximum Allow-
able Stress Design
Wind Speed,****Vasd
f
(mph)|Mean roof
height (feet)|Roof slope < 5:12|Roof slope 5:12 < 12:12|Roof slope 12:12 and over| |85|0-60|Fasteners are not required.
Tiles with installed weight less
than 9 lbs./sq. ft. require not
fewer than one fastener per tile.|One fastener per tile every other
row. Perimeter tiles require one
fastener. Tiles with installed weight
less than 9 lbs./sq. ft. require not
fewer than one fastener per tile.|One fastener required for
every tile. Tiles with
installed weight less than 9
lbs./sq. ft. require not fewer
than one fastener per tile.| |100|0-40|0-40|0-40|0-40| |100|> 40-60|The head of all tiles shall be nailed. The nose of all eave tiles shall be fastened with approved clips.
Rake5 tiles shall be nailed with two nails. The nose of all ridge, hip and rake tiles shall be set in a bead
of roofer’s mastic.|The head of all tiles shall be nailed. The nose of all eave tiles shall be fastened with approved clips.
Rake5 tiles shall be nailed with two nails.
CMC § 2.25 Medium relevance — show source text
00|2.25|0.70|DR|3.70|1.05|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|33 mil cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|16|3.85|1.45|DR|DR|3.40|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|33 mil cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|24|3.40|DR|DR|DR|2.70|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|12|3.00|1.80|DR|DR|3.00|0.65|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|16|3.00|1.00|DR|DR|2.85|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|24|2.85|DR|DR|DR|2.20|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|12|4.00|3.85|2.80|1.80|4.00|3.05|1.50|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|16|4.00|3.30|1.95|0.60|4.00|2.25|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|24|4.00|2.25|DR|DR|4.00|0.65|DR|DR| |For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
DR = Design Required, o.c. = on center.
a. Wood furring shall be spruce-pine-fir or any softwood species with a specific gravity of 0.42 or greater.

CEC § 202 Medium relevance — show source text

Example:

CHAPTER 2 – DEFINITIONS AND ABBREVIATIONS

Adopting agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	Col17	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting agency	BSC	BSC- CG	SFM	1	2	1-AC	AC	SS	SS/CC	1	1R	2	3	4	5	6	6	6	6	6	6	6	6	6
Adopt entire chapter
Adopt entire chapter as amended (amended sections listed below)			X
Adopt only those sections that are listed below								S	A	M	P	L	E
Chapter/Section
202			X

2025 CALIFORNIA BUILDING CODE vii

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Adopt only those sections that are listed below:

If there is an “X” under a particular state agency’s acronym on this row, it means that particular state agency is adopting only specific model code or state-amended sections within this chapter. There will be an “X” in the column under the agency’s acronym, as well as an “X” by each section that the agency has adopted.

Example:

CHAPTER 2 – DEFINITIONS AND ABBREVIATIONS

CMC § 140.9 Medium relevance — show source text
9(c)3B Fume Hood Intensive Laboratories 140.9(c)4, Table 140.9-D Function 110.2(a)3, 110.9(b)1D, 110.12(a), 110.12(c)1, 120.8(b)3, 120.8(f)4, 130.1(c)6D, 130.1(f), 141.0(b)2I, 160.5(b)4C, 160.5(b)4F, 180.3(b)4B Function Areas 120.6(g)1, 120.8, 130.1(c)1C, 130.1(c)3B, 130.1(c), 140.6(a)3D, 140.6(c)2AB, 140.6(c)2G, 140.6(c)3A, 140.6(c)3F, 140.6(c)3, 170.2(e)4 Functional Areas 160.5, 130.0(b) Functional Performance Testing 120.8(a)6, 120.8(g) Furnace Installation 150.0(h)4A, 160.3(b)4A Furnace Output 150.0(h)1 Future 240V Use 150.0(n)1, 150.0(t)2, 150.0(u)2, 150.0(v)2, 160.4(a)1B, 160.9(a)2, 160.9(b)2, 160.9(c)

G

Gas Bypass 140.4(e)3B, 170.2(c)4C Cooler efficiency 120.6(a)8H, 120.6(b)5H Cooler pressure 120.6(a)8E-F, 120.6(b)5E-F Fired furnace 110.2(d), Table 110.2-I, Table 110.2-J Furnace 150.0(m)13, 150.1(c)10, 160.3(b)5L, 170.2(c)3B Heater 110.4(b)2 Log 150.0(e), 160.1(f) Or propane 100.2, 150.0(n)1, 150.0(t-v), 150.1(c)8, 150.2(a)1D, 150.2(b)1H, 160.4(a), 160.9, 170.2(d)1C, 170.2(d)3, 180.2(b)3C Service water heating 140.5(c), 141.0(a)2, 170.2(d)3A Supply 160.4(a)4 Water heater 140.5(c), 150.0(n), 170.2(d)3 Gas- and Oil-fired Boilers, Minimum Efficiency Requirements Table 110.2-J Gasket 110.7, 120.1(c)1D, 150.0(a)3, 150.0(k)1C, 150.0(m)12B, 160.1(a)1B, 160.2(b)1B, 160.2(c)1D, 160.5(a)1C Geometry 140.3(a)6E, 141.0(b)3D2, 150.

Frequently asked questions

Where exactly in the CMC should I look first for the official wording?

Look in the CMC Chapter 2 Definitions — the user-specified controlling section is § 202.0. The files you gave did not include the CMC § 202.0 text, so please provide that page or check your adopted CMC book or AHJ for the official wording.

Can manufacturing machines ever be treated as “Equipment” under the CMC?

By the common California building-code interpretation (see Existing Building Code), manufacturing/production/process equipment is excluded from “equipment or fixture.” However, the building-service connections to process equipment are covered. Confirm in CMC § 202.0 and the applicable CMC chapter for any local amendments.

If I can’t find § 202.0 text in my copy of the CMC, what should I do?

Obtain the official adopted CMC book (or PDF) for your jurisdiction or contact your AHJ (building official). Index references in the CMC indicate where to find equipment installation rules (e.g., § 303.8), but the exact definition wording must come from § 202.0 itself.

Does the CMC control plumbing fixture counts?

Not directly — plumbing fixture counts and fixture‑unit values are in the California Plumbing Code; however the mechanical code (CMC) and building code cross‑reference plumbing fixtures when equipment or fixtures affect mechanical systems. See CPC tables for numeric DFU values.

Will rooftop exhaust hoods be “equipment” or “fixture”?

Rooftop HVAC, fans, and exhaust hoods that are part of building HVAC are treated as equipment subject to CMC equipment chapters (clearances/rooftop mounting). Process exhaust hoods serving production may fall under process equipment rules; check the specific CMC chapter and AHJ.

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Equipment, refrigeration and valve definitions frequently referenced

California Mechanical Code

How are 'Equipment' and 'Fixture' defined for the CMC?

What the code requires — 2–4 sentences

Requirements in detail

Short plain-English synthesis (practical rule)

Decision-relevant dimensions (quick table)

How I reached this (documentation status)

Exceptions & special cases

Common mistakes

Worked example — concrete scenario

Related provisions (CMC / related California codes to check)

Code references

61 LIQUEFIED PETROLEUM GASES

2 DEFINITIONS

2 DEFINITIONS

2 DEFINITIONS

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