How SFM 12-71-1 is used in Title 24 (mechanical, energy, and equipment codes)

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

• CRSC § 509.2.3 High relevance — show source text

  509.2.3 Grease Filters. Grease filters shall be listed

  and constructed of steel or other non-combustible material, and shall be of rigid construction that will not distort or crush under normal operation, handling, cleaning, or replacement. [SFM] For applications listed in Section 1.11.0 regulated by the Office of the State Fire Marshal, grease filters shall be Class I when tested in accordance with the test method in Title 24, Part 12, Chapter 12-71, SFM Standard 12-71-1.

  509.2.3.1 Arrangement. Grease filters shall be arranged so that all exhaust air passes through the grease filters. [NFPA 96:6.2.3.4]

  509.2.3.2 Accessibility. Grease filters shall be easily accessible for removal. [NFPA 96:6.2.3.5]

  509.2.3.3 Angled Installation. Grease filters shall be installed at an angle not less than 45 degrees (0.79 rad) from the horizontal. [NFPA 96:6.2.3.6]

  509.2.3.4 [DPH] Grease filters shall be Class I when tested in accordance with the test method in

  SFM 12-71-1.

  509.2.4 Grease Drip Trays. Grease filters shall be equipped with a grease drip tray beneath their lower edges. [NFPA 96:6.2.4.1]

  509.2.4.1 Size and Pitch. Grease drip trays shall be kept to the minimum size needed to collect grease. Grease drip trays shall be pitched to drain into an enclosed metal container having a capacity not exceeding 1 gallon (4 L). [NFPA 96:6.2.4.2, 6.2.4.3]

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  EXHAUST SYSTEMS

  509.2.5 Grease Filter Orientation. Grease filters that require a specific orientation to drain grease shall be clearly so designated on the face of the filter as to be visible with the filter installed, or the hood or filter shall be constructed so that filters cannot be installed in the wrong orientation. [NFPA 96:6.2.5]

  509.3 Solid-Fuel Grease Removal Devices. Where solid-fuel cooking equipment is provided with grease removal devices, these devices shall be in accordance with Section 517.0.

  510.0 Exhaust Duct Systems.

  510.1 General. Ducts shall not pass through fire walls.

  [NFPA 96:7.1.1]

  510.1.1 Fire Hazards. All ducts shall lead directly to the exterior of the building, so as not to unduly increase any fire hazard. [NFPA 96:7.1.2]

  510.1.2 Interconnection. Duct systems shall not be interconnected with any other building ventilation or exhaust system. [NFPA 96:7.1.3]

• CRSC § 403.7 High relevance — show source text

  1
  Table 403.7_Notes 11 & 12_
  
  
  ||||X|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.

  2025 CALIFORNIA MECHANICAL CODE 67

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  CHAPTER 4

  VENTILATION AIR

  401.0 General.

  401.1 Applicability. This chapter contains requirements for ventilation air supply, exhaust, and makeup air requirements for occupiable spaces within a building. [OSHPD 1, 1R, 2, 3, 4 & 5] See Sections 406.0 through 419.0. [SFM] Air filters shall comply with all requirements of Part 12, Title 24, Chap- ter 12-71, SFM Standard 12-71-1. Spaces within buildings, except those within a dwelling unit in residential occupancies where occupants are nontransient, shall comply with Section 402.0 through Section 404.0. Requirements for ventilation air rate for dwelling units in residential occupancies, where the occupants are nontransient, shall be in accordance with Section 405.0 or ASHRAE 62.2.

  401.2 Indoor Swimming Pools. The design of ventilation systems serving an indoor aquatic facility (natatorium) shall comply with the Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC).

  401.3 Filters. [BSC-CG & DSA-SS] In mechanically ven- tilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air that provides at least a Minimum Efficiency Reporting Value (MERV) of 13. MERV 13 filters shall be installed prior to occupancy, and recommendations for maintenance with fil- ters of the same value shall be included in the operation and maintenance manual in compliance with Chapter 5, Division 5.5 of the California Green Building Standards Code (CAL- Green).

  Exception: Existing mechanical equipment.

  401.3.1 Labeling. Installed filters shall be clearly labeled by the manufacturer indicating the MERV rating.

  402.0 Ventilation Air.

  402.1 Occupiable Spaces. Occupiable spaces listed in Table 402.1 shall be designed to have ventilation (outdoor) air for occupants in accordance with this chapter. [DSA-SS] Ven- tilation air requirements for occupancies regulated by the California Energy Commission are found in the California Energy Code.

  [CEC] Ventilation air requirements for occupancies regu- lated by the California Energy Commission and found in the California Energy Code supersede those of the California Mechanical Code.

• CRSC § 416.2 High relevance — show source text

  0_
  414.0
  415.0
  416.0 – 416.2
  416.3
  416.4
  417.0
  418.0
  419.0
  Table 4-A
  Table 4-B
  Table 4-C
  Table 402.1
  Table 403.7_Notes 11 & 12_
  
  
  |X|||||||X||||||||||||||||| |Adopting Agency
  Adopt Entire Chapter
  Adopt Entire Chapter as
  amended (amended sections
  listed below)
  Adopt only those sections
  that are listed below
  Chapter/Section
  401.1
  401.3
  401.3.1
  402.1
  402.1.2
  402.2
  402.3
  403.0
  403.7.2.1 – 403.7.2.4
  405.3
  406.0
  407.0
  408.0
  409.0
  410.0
  411.0
  412.0
  413.0
  414.0
  415.0
  416.0 – 416.2
  416.3
  416.4
  417.0
  418.0
  419.0
  Table 4-A
  Table 4-B
  Table 4-C
  Table 402.1
  Table 403.7_Notes 11 & 12_
  
  
  ||||X|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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  CHAPTER 4

  VENTILATION AIR

  401.0 General.

  401.1 Applicability. This chapter contains requirements for ventilation air supply, exhaust, and makeup air requirements for occupiable spaces within a building. [OSHPD 1, 1R, 2, 3, 4 & 5] See Sections 406.0 through 419.0. [SFM] Air filters shall comply with all requirements of Part 12, Title 24, Chap- ter 12-71, SFM Standard 12-71-1. Spaces within buildings, except those within a dwelling unit in residential occupancies where occupants are nontransient, shall comply with Section 402.0 through Section 404.0. Requirements for ventilation air rate for dwelling units in residential occupancies, where the occupants are nontransient, shall be in accordance with Section 405.0 or ASHRAE 62.2.

• CRSC § 12-16 Medium relevance — show source text

  CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2

  DIVISION OF THE STATE ARCHITECT

  Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.

  DIVISION 1—CONSTRUCTION

  SCOPE

  Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.

  Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).

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  12-31C RADIATION SHIELDING STANDARDS

  STANDARD 12-31C-1

  DEPARTMENT OF HEALTH SERVICES

  Authority: Sections 102, 208 and 25811.

  Reference: Sections 102, 208 and 436.5.

  ALL HEALING ARTS X-RAY INSTALLATIONS

  Sec. 12-31C-101. All radiation shielding barriers in rooms and enclosures housing radiation machines shall comply with the mandatory standards and appendices in Report No. 35, “Dental X-RAY Protection”; Report 49, “Structural Shielding Design and Evaluation for Medical use of X-rays and Gamma Rays of Energies up to 10 MeV”; and Report No. 51, “Radiation Protection Design Guidelines for 0.1-100 MeV Particle Accelerator Facilities.” Published by the National Council on Radiation Protection and Measurements, 7910 Woodmont Avenue, Bethesda, Maryland 20814.

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  12-71 AIR FILTERS

  STANDARD 12-71-1

  STATE FIRE MARSHAL

  DESCRIPTION OF TEST APPARATUS, METHOD AND CLASSIFICATION REQUIREMENTS FOR AIR FILTERS

  Sec. 12-71-100.

  (a) Test apparatus.

  1. The test duct, made of M.S. gage galvanized sheet metal reinforced with angle irons, is 21 inches square (13 548 mm [2] ) and 13 [1] / 2 feet (4114 mm) long.
• CRSC § 29.3.1 Medium relevance — show source text

  Revise Section 29.3.1 as follows:

  29.3.1 All devices, combinations of devices and equipment to be installed in conformity with this chapter shall be approved and listed by the California State Fire Marshal for the purposes for which they are intended.

  Revise Section 29.8.2.1.1 as follows:

  29.8.2.1.1 Smoke and Heat Alarms.* Where connected to a supervising station unless exempted by applicable laws, codes or standards, smoke or heat alarms used to provide a fire-warning function, and when two or more alarms are installed within a dwelling unit, suite of rooms or similar area, shall be arranged so that the operation of any smoke or heat alarm causes all alarms within these locations to sound.

  Note: Exception to 29.8.2.1.1 not adopted by the SFM.

  Add Section 29.10.2.1 as follows:

  29.10.2.1 The alarm verification feature shall not be used for household fire warning equipment.

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  REFERENCED STANDARDS

  Add Section 29.10.6.8.1 as follows:

  29.10.6.8.1 The alarm verification feature shall not be used for household fire warning equipment.

  80—22: Standard for Fire Doors and Other Opening Protectives

  410.2.5, 509.4.2, 716.1, 716.2.5.1, 716.2.6.4, 716.2.9, 716.3.4.1, 716.3.5, 716.4.3, 909.18.3, 1010.3.3

  82— 24 : Standard on Incinerators and Waste and Linen Handling Systems and Equipment

  713.13

  85—23: Boiler and Combustion Systems Hazards Code

  426.1

  92— 24 : Standard for Smoke Control Systems

  909.7, 909.8

  99—24: Health Care Facilities Code

  407.11, 422.6, 425.1

  101—24: Life Safety Code

  1030.6.2

  105— 25 : Standard for Smoke Door Assemblies and Other Opening Protectives

  909.20.4.1, 405.4.2, 710.5.2.2, 716.2.10, 909.18.3

  110— 25 : Standard for Emergency and Standby Power Systems

  2702.1.3, 3111F

  111— 25 : Standard on Stored Electrical Energy Emergency and Standby Power Systems

  2702.1.3, 3111F

  120— 23 : Standard for Fire Prevention and Control in Coal Mines

  426.1

  130—20: Standard for Fixed Guideway Transit and Passenger Rail Systems

  443

  *NFPA 130, Amended Sections as follows:

  Amend Section 2.2 and amend publications to read as follows:

  2.2 NFPA Publications.

• CRSC § 509.2 Medium relevance — show source text

  (2) Where a grease removal device is listed for separation distances less than those required in Section

  509.2 and Section 509.2.1, the listing requirements shall be permitted. [NFPA 96:6.2.1.4]

  (3) Grease removal devices supplied as part of listed hood assemblies shall be installed in accordance with the terms of the listing and the manufacturer’s instructions. [NFPA 96:6.2.1.5]

  509.2.2 Grease Removal Device Protection. Where the distance between the grease removal device and the appliance flue outlet (heat source) is less than 18 inches (457 mm), grease removal devices shall be protected from combustion gas outlets and from direct flame impingement occurring during normal operation of cooking appliances producing high flue gas temperatures.

  [NFPA 96:6.2.2.1]

  509.2.2.1 Installation. This protection shall be permitted to be accomplished by the installation of a steel or stainless steel baffle plate between the heat source and the grease removal device. [NFPA 96:6.2.2.2]

  509.2.2.2 Size and Location. The baffle plate shall be sized and located so that flames or combustion gases travel a distance not less than 18 inches (457 mm) from the heat source to the grease removal device. [NFPA 96:6.2.2.3]

  509.2.2.3 Clearance. The baffle shall be located not less than 6 inches (152 mm) from the grease removal device. [NFPA 96:6.2.2.4]

  509.2.3 Grease Filters. Grease filters shall be listed

  and constructed of steel or other non-combustible material, and shall be of rigid construction that will not distort or crush under normal operation, handling, cleaning, or replacement. [SFM] For applications listed in Section 1.11.0 regulated by the Office of the State Fire Marshal, grease filters shall be Class I when tested in accordance with the test method in Title 24, Part 12, Chapter 12-71, SFM Standard 12-71-1.

  509.2.3.1 Arrangement. Grease filters shall be arranged so that all exhaust air passes through the grease filters. [NFPA 96:6.2.3.4]

  509.2.3.2 Accessibility. Grease filters shall be easily accessible for removal. [NFPA 96:6.2.3.5]

  509.2.3.3 Angled Installation. Grease filters shall be installed at an angle not less than 45 degrees (0.79 rad) from the horizontal. [NFPA 96:6.2.3.6]

  509.2.3.4 [DPH] Grease filters shall be Class I when tested in accordance with the test method in

  SFM 12-71-1.

  509.2.4 Grease Drip Trays. Grease filters shall be equipped with a grease drip tray beneath their lower edges. [NFPA 96:6.2.4.1]

• CRSC § 101.5 Medium relevance — show source text

  101.5 Referenced codes and standards. The codes and standards referenced elsewhere in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference.

  101.5.1 Building. The provisions of the California Building Code, California Residential Code and California Existing Building Code, as applicable, shall apply to the construction, alteration, movement, enlargement, replacement, repair, use and occupancy, location, maintenance, removal and demolition of every structure or any appurtenances connected or attached to such buildings or structures.

  101.5.2 Electrical. The provisions of the California Electrical Code shall apply to the installation of electrical systems, including but not limited to, alterations, repair, replacement, equipment, appliances, fixtures, fittings and appurtenances thereto.

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  ADMINISTRATION

  101.5.3 Mechanical. The provisions of the California Mechanical Code shall apply to the installation, alterations, repair and replacement of mechanical systems, including equipment, appliances, fixtures, fittings and/or appurtenances, including ventilating, heating, cooling, air-conditioning and refrigeration systems, incinerators and other energy-related systems.

  101.5.4 Plumbing. The provisions of the California Plumbing Code shall apply to the installation, alteration, repair and replacement of plumbing systems, including equipment, appliances, fixtures, fittings and appurtenances where connected to a water or sewage system.

  101.5.5 Fire prevention. The provisions of CCR, Title 19, Division 1 and CCR, Title 24, Part 2 and Part 9 relating to fire and panic safety as adopted by the Office of the State Fire Marshal shall apply to all structures, processes and premises for protection from the hazard of fire, panic and explosion.

  101.5.6 Energy. The provisions of the California Energy Code shall apply to the minimum design and construction of buildings for energy efficiency.

  101.6 Order of precedence and use.

  101.6.1 Differences. In the event of any differences between these building standards and the standard reference documents, the text of these building standards shall govern. In the event a local amendment to this code results in differences between these building standards and the amendment, the text of the amendment shall govern.

  101.6.2 Specific provision. Where a specific provision varies from a general provision, the specific provision shall apply.

  101.6.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24, the most restrictive requirement shall prevail.

  101.6.4 Explanatory notes. Explanatory material, such as references to websites or other sources where additional information may be found, is included in this code in the form of notes. Notes are informational only and are not enforceable requirements of this code.

  101.7 City, county, or city and county amendments, additions or deletions. This code is intended to set mandatory minimum Green Building Standards and includes optional tiers that may, at the discretion of any city, county, or city and county, be applied.

• CRSC § 12-3 Medium relevance — show source text

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  PART 12 CROSS REFERENCE TABLE

  (Cross reference table is nonregulatory, intended only as an aid to the code user.)

  PART 12 STANDARD	SUBJECT	ADOPTING AGENCY	ASSOCIATED TITLE 24 BUILDING STANDARD
  Chapter 12-3	Releasing systems for security bars in dwellings	SFM	Part 2, Sections 1031.2.1, 1031.6, 1032.7 Part 2.5, Sections R319.1.1 and R319.4.4 Part 9, Sections 1031.2.1, 1031.6, 1032.7 Appendix 4 Section 452.1.5 and Title 19 provisions 4.1, 4.2, 4.3, 4.4, 4.5, 4.6 reprinted in Part 9 Part 10, Section 505.4
  Chapter 12-4A	Laboratory animal quarters standards	DPH	Part 2, Section 1236
  Chapter 12-4-1	Stage and Platforms	SFM	Part 2, Sections 410.2.7, 410.2.7.1, 410.2.7.2 Part 9, Sections 105.6.51, 4809
  Chapter 12-7-1	Fire-resistive standards. Fire tests of building construction and materials.	SFM	Part 2, Section 703
  Chapter 12-7-2	Reserved
  Chapter 12-7-3	Fire-resistive standards. Fire testing furnaces.	SFM	Part 9, Section 3001
  Chapter 12-7-4	Fire-resistive standards. Fire door assembly tests.	SFM	Part 2, Section 716
  Chapter 12-7-5	Fire-resistive standards. Interior finish of decorative material.	SFM	Part 2, Chapter 8 Part 9, Chapter 8
  Chapter 12-7A	Materials and construction methods for exterior wildfire exposure	SFM	Part 7, Chapter 5
  Chapter 12-8-1	Fire-resistive standards for fire protection	SFM	Part 2, Sections 408.14 and 435.6.2
  Appendix 12-8-1A	Calculation of the total rate of heat and carbon monoxide or carbon dioxide production	SFM
  Appendix 12-8-1B	Guide to mounting techniques for wall and ceiling interior finish material	SFM
  Chapter 12-10-1	Exits. Power-operated exit doors.	SFM	Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1
  Chapter 12-10-2	Exits. Single-point latching or locking devices.	SFM	Part 2, Section 1010.2.2 Part 9, Section 1010.2.2
  Chapter 12-10-3	Exits. Emergency exit and panic hardware.

• CRSC § 12-8 Medium relevance — show source text

  GUIDE TO MOUNTING TECHNIQUES FOR WALL AND CEILING INTERIOR FINISH MATERIAL

  FIGURE 12-8-1B-3—TYPICAL MOUNTING TECHNIQUE FOR RIGID WALL MATERIALS

  Note: When required, additional fasteners may be used to hold up the specimen flush to the wall.

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  GUIDE TO MOUNTING TECHNIQUES FOR WALL AND CEILING INTERIOR FINISH MATERIAL

  FIGURE 12-8-1B-4—TYPICAL MOUNTING TECHNIQUE FOR FLEXIBLE WALL MATERIALS

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  GUIDE TO MOUNTING TECHNIQUES FOR WALL AND CEILING INTERIOR FINISH MATERIAL

  FIGURE 12-8-1B-5—TYPICAL MOUNTING TECHNIQUE FOR CEILING MATERIALS

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  POWER-OPERATED EXIT DOORS

  STANDARD 12-10-1

  STATE FIRE MARSHAL

  SCOPE

  Sec. 12-10-100.

  (a) General. These requirements and methods of test apply to power operated: swinging doors, and combination sliding and swinging doors intended for installation in locations where conforming exits are required by Title 24, California Code of Regulations, Part 2, Chapter 10.

  (b) Power-operated doors described in (a) may be provided with air, hydraulic or electric operators actuated from a floor, activating carpet, photoelectric device or other approved signaling device.

  (c) Alternates. A product employing materials or having forms of construction differing from those described in this procedure may be examined and tested in accordance with the intent of these testing procedures and, if found to be substantially equivalent, may be recognized for listing.

  (d) Application. The minimum design, construction and testing procedures set forth herein are those deemed as the minimum necessary to establish conformance to the regulations of the State Fire Marshal contained in Title 24, California Code of Regulations.

  (e) Fire door assemblies. Power-operated doors intended for installation in openings where listed fire door assemblies are required, shall in addition to the requirements of this standard, be tested in accordance with the Fire Door Assembly Tests, SFM 12-7-4.

  GENERAL

  Sec. 12-10-101.

  (a) Panic hardware. Power-operated doors intended for installation in openings where panic hardware is required shall be tested with listed panic hardware on the doors.

  (b) Glazed doors. Glazing of doors shall conform to Title 24, California Code of Regulations, Part 2, Chapter 7.

  (c) Opening degree. Where manually operated in the direction of egress, leaves of swinging doors or swing-out sections of sliding doors shall swing open to not less than 90 degrees from the closed position.

• CRSC § 170.2 Medium relevance — show source text

  The rated energy capacity shall be not less than the Minimum Rated Useable Energy Capacity determined by Equation 170.2-E, or by Equation 170.2-F if SARA was used to determine the PV capacity in Section 170.2-D, and the rated power capacity shall be not less than the Minimum Power Capacity determined by Equation 170.2-G. In mixed occupancy buildings, the total battery system capacity for the building shall be determined by applying the Minimum Rated Usable Energy Capacity to each of the listed building types and summing the capacities determined for each.

  EQUATION 170.2-E—BATTERY ENERGY STORAGE SYSTEM MINIMUM RATED USABLE ENERGY CAPACITY kWh batt = k((CFA × B)/(1000 × C [0.5] ))

  — EQUATION 170.2-F BATTERY ENERGY STORAGE SYSTEM MINIMUM RATED USABLE ENERGY CAPACITY, SARA-ADJUSTED kWh batt = k((CFA × B)/(1000 × C [0.5] )) × (kWP Vdc,SARA /kWP Vdc )

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  MULTIFAMILY BUILDINGS—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES

  where:

  kWh batt = Minimum Rated Usable Energy Capacity of the BESS in kWh.

  kW PVdc = Minimum Rated PV System Capacity in kW from Equation 170.2D. kW PVdc, SARA = Minimum Rated PV System Capacity in kW from the SARA calculation. CFA = Conditioned floor area that is subject to the PV system requirements of Section 170.2(g) in square feet.

  B = BESS Capacity Factor in Wh/square foot as specified in Table 170.2-V for the building type.

  C = Rated single charge-discharge cycle AC to AC (round-trip) efficiency of the BESS.

  EQUATION 170.2-G—BATTERY ENERGY STORAGE SYSTEM MINIMUM RATED POWER CAPACITY

  kW batt = kW batt /4

  where:

  kW batt = Minimum Rated Power Capacity of the BESS in kW dc .

  kWh batt = Minimum Rated Usable Energy Capacity of the BESS in kWh.

  Exception 1 to Section 170.2(h): No BESS is required if the installed PV system capacity is less than 15 percent of the capacity determined by Equation 170.2-D.

  Exception 2 to Section 170.2(h): No BESS is required in buildings with BESS requirements with less than 10 kWh minimum rated usable energy capacity.

  |TABLE 170.

• CRSC § 13.3 Medium relevance — show source text

  CERTIFIED TO THE ENERGY COMMISSION means, when used in association with appliances, certified under Section 1606 of Title 20 of the California Code of Regulations; and otherwise means certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that all the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable provisions of Part 6; and if applicable that the equipment, product or device was tested under the applicable test method specified in Part 6.

  CERTIFYING ORGANIZATION is an independent organization recognized by the Commission to certify manufactured devices for performance values in accordance with procedures adopted by the Commission.

  CIE 13.3 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Method of Measuring and Specifying Colour Rendering Properties of Light Sources,” 1995 (CIE 13.3-1995).

  CIE 15 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Technical Report: Colorimetry,” 2018 (CIE 15:2018).

  CIRCULATING FAN means a fan that is not a ceiling fan, but that is used to move air within a space that has no provision for connection to ducting or separation of the fan inlet from its outlet, and designed to be used for the general circulation of air.

  CLIMATE ZONES are the 16 geographic areas of California for which the commission has established typical weather data, prescriptive packages and energy budgets. Climate zones are defined by ZIP code and listed in Reference Joint Appendix JA2. FIGURE 100.1-A is an approximate map of the 16 climate zones.

  CLOSED-CIRCUIT COOLING TOWER is a cooling tower that utilizes indirect contact between a heated fluid, typically water or glycol, and the cooling atmosphere to transfer the source heat load through sensible heat, latent heat and mass transfer indirectly to the air, essentially combining a heat exchanger and cooling tower into an integrated and relatively compact device.

  CODES, CALIFORNIA HISTORICAL BUILDING CODE is the California Historical Building Code, California Code of Regulations, Title 24, Part 8 and Part 2 (Chapter 34).

  CODES, CBC is the 2025 California Building Code.

  CODES, CEC is the 2025 California Electrical Code.

  CODES, CFC is the 2025 California Fire Code.

  CODES, CMC is the 2025 California Mechanical Code.

  CODES, CPC is the 2025 California Plumbing Code.

  COEFFICIENT OF PERFORMANCE (COP), COOLING is the ratio of the rate of net heat removal to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 110.2.

  COEFFICIENT OF PERFORMANCE (COP), HEATING is the ratio of the rate of net heat output to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 110.2.

  COEFFICIENT OF PERFORMANCE (COP), HEAT PUMP is the ratio of the rate of useful heat output delivered by the complete heat pump unit (exclusive of supplementary heating) to the corresponding rate of energy input, in consistent units and as determined using the applicable test method in Appliance Efficiency Regulations or Section 110.2.

• CRSC § 10-13 Medium relevance — show source text

  R1006.5 Outlet. The exterior air outlet shall be located in the back or side of the firebox chamber or shall be located outside of the firebox, at the level of the hearth and not greater than 24 inches (610 mm) from the firebox opening. The outlet shall be closable and designed to prevent burning material from dropping into concealed combustible spaces.

  2025 CALIFORNIA RESIDENTIAL CODE 10-13

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

  10-14 2025 CALIFORNIA RESIDENTIAL CODE

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

  Part IV—Energy Conservation

  (Note: Part IV is not adopted. See California Energy Code, Title 24, Part 6.)

  2025 CALIFORNIA RESIDENTIAL CODE 11-1

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

  11-2 2025 CALIFORNIA RESIDENTIAL CODE

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

  Part V—Mechanical

  (Note: Part V is not adopted. See California Mechanical Code, Title 24, Part 4.)

  2025 CALIFORNIA RESIDENTIAL CODE 12-1

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

  12-2 2025 CALIFORNIA RESIDENTIAL CODE

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

  Part VI—Fuel Gas

  (Note: Part VI is not adopted. See California Mechanical Code and California Plumbing Code, Title 24, Parts 4 and 5.)

  2025 CALIFORNIA RESIDENTIAL CODE 24-1

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

  24-2 2025 CALIFORNIA RESIDENTIAL CODE

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

  Part VII—Plumbing

  (Note: Part VII is not adopted. See California Plumbing Code, Title 24, Part 5.)

  2025 CALIFORNIA RESIDENTIAL CODE 25-1

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

  25-2 2025 CALIFORNIA RESIDENTIAL CODE

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

  Part VIII—Electrical

  (Note: Part VIII is not adopted. See California Electrical Code, Title 24, Part 3.)

  2025 CALIFORNIA RESIDENTIAL CODE 34-1

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

  34-2 2025 CALIFORNIA RESIDENTIAL CODE

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

  CALIFORNIA RESIDENTIAL CODE – MATRIX ADOPTION TABLE

  CHAPTER 44 – REFERENCED STANDARDS

  (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