CPC · California Plumbing Code
How to use defined terms when interpreting CPC provisions
If a CPC provision depends on a technical word, check Chapter 2 (Section 202) first — that definition controls. If § 202 doesn’t define the word, use chapter-level definitions, referenced-standards definitions, and the construction rules in § 201.2 (singular/plural, gender, tense), then ordinary meaning as a last resort. The CPC files I reviewed show Chapter 2 present, but I did not retrieve text specifically labeled § 202.0 or § 202.1; provide those pages if you want direct quotes.
Last reviewed: July 6, 2026
What the code requires
The California Plumbing Code (CPC) places the primary meanings of technical words in Chapter 2 (“Definitions”), so you must use those definitions when a CPC provision depends on a technical term — see Chapter 2 / Section 202 in the CPC. § 202.0 and § 202.1 were identified as the controlling items for this task, but the exact text labeled “§ 202.0” or “§ 202.1” does not appear in the uploaded CPC excerpts I reviewed; Chapter 2 (Section 202) is present in the CPC text I was able to retrieve.
Where the CPC (or another Title 24 part) provides rules of construction — e.g., that the singular includes the plural, that masculine includes feminine, and similar interchangeability rules — those rules govern how defined terms are applied (see § 201.2 interchangeability as used throughout the California codes).
The single most important rule: use the code’s Chapter 2 definition for a term if one exists; only if the code lacks a definition follow the code’s rules of construction and the fallback sources the code names.
Requirements in detail
1) Where to look first
- Primary source: Chapter 2 — Section 202 (Definitions) in the CPC. This is the authoritative set of definitions for CPC text.
- If a CPC provision refers to a defined term but Chapter 2 does not define it, check:
- Definitions in the same Part/Chapter that lists defined terms (some chapters list their own definitions; see Building Code pattern).
- Definitions in referenced standards (if the CPC text says “as defined in [standard],” use the standard’s definition).
- General rules of construction (singular/plural, gender, “shall”/“may”).
2) Hierarchy / resolution order (decision-relevant dimensions)
Use the following decision order when a dispute or ambiguity arises:
| Decision dimension | What to prefer | How it affects interpretation | Code reference |
|---|---|---|---|
| Explicit CPC definition | Chapter 2, § 202 | Use the CPC definition; it controls the meaning in CPC provisions | § 202 — CPC (Chapter 2) |
| Local chapter definition | Definition listed inside the same chapter or section | Use the chapter-level definition when present (e.g., accessibility chapter defines accessibility terms) | See Chapter-specific definitions (pattern in Title 24) |
| Reference standard definition | A named referenced standard in the provision | Use the standard’s definition when the provision so directs | See use of referenced standards in CPC tables and notes |
| Rules of construction | Interchangeability, tense, gender, singular/plural | Apply grammatical rules in § 201.2 when no controlling definition exists | § 201.2 (Interchangeability) — California codes |
| Ordinary meaning | Collegiate dictionary / ordinary meaning | Last resort; apply ordinary meaning consistent with context when no code/standard definition exists | See “terms not defined” fallback in Title 24 codes |
3) How to read a defined term in a provision
- If a CPC provision uses a capitalized defined term, presume it draws its meaning from § 202 unless the provision or its chapter explicitly says otherwise.
- If the provision quotes or references a national standard for the term, the standard’s definition controls for that provision only.
- If a term appears in a local California amendment to the model text, the California amendment’s definition (if any) controls. The CPC clearly marks California amendments in italics and adoption tables.
4) Grammatical rules that change meaning
- Words in the present tense include the future; masculine includes feminine; the singular includes the plural and vice versa (interchangeability rules). Apply these when the definition would otherwise produce an unintended narrow result. § 201.2 contains this rule as adopted across Title 24.
Exceptions & special cases
- Terms specifically defined in a referenced standard take precedence for provisions that point to that standard (e.g., a fixture standard). The CPC and its referenced-standards lists make this explicit.
- Accessibility and other specialty chapters may list their own defined-terms tables (see the Building Code accessibility chapter example where Chapter 2 definitions are referenced and some chapter-specific terms are listed). If a chapter both lists a definition and Chapter 2 lists one, verify which the chapter says governs.
- Where a California agency has amended model-code language, the California amendment (printed in the CPC) controls; the matrix adoption tables in the CPC show which sections are state-amended.
Common mistakes
- Mistake: assuming lower‑case or common-law meaning when a capitalized defined term exists in § 202. Always check § 202 first.
- Mistake: applying a dictionary meaning even though a chapter-specific or referenced‑standard definition exists. Check hierarchy before resorting to dictionaries.
- Mistake: forgetting interchangeability rules (singular/plural/gender/tense) from § 201.2 when construing requirements — this can change who or what is covered.
- Mistake: treating a model-code term and a California‑amended term as identical when the CPC amends the model definition — always check the CPC text and the adoption tables.
Worked example
Scenario: A permit reviewer must decide whether two rooms sharing a kitchen and separate sleeping spaces are “two dwelling units” for plumbing fixture calculations.
Step 1 — look for an explicit definition: Search § 202 (Chapter 2) in the CPC for “dwelling unit”. If § 202 defines “dwelling unit”, that definition controls whether the two rooms are one or two units. (I located Chapter 2 in the CPC file but did not find the exact quoted text labeled “§ 202.0”/“§ 202.1” in the uploaded files; see note below.)
Step 2 — apply chapter/chapter‑level definitions if present: If the plumbing chapter or a residential chapter has its own definition (e.g., in a California Residential Code chapter adopted into Title 24), apply that per the hierarchy.
Step 3 — if no definition, use rules of construction: If the CPC lacks a definition for “dwelling unit,” apply § 201.2 (interchangeability) and the ordinary meaning per the fallback rule (dictionary) — but remember the code often directs use of a specific code’s definition if the term is defined there.
Numeric outcome example: Suppose the plumbing fixture table requires 1 water closet per dwelling unit. If the CPC § 202 definition of “dwelling unit” requires separate cooking facilities for a unit to be a separate dwelling unit and the two rooms share a single kitchen, then count one dwelling unit (1 water closet). If § 202 allows separate sleeping areas with shared kitchen to be separate units (hypothetical), you would count two dwelling units (2 water closets). The numeric calculation follows directly from which definition from § 202 applies. (Note: I cannot quote the exact text of “dwelling unit” from § 202 because the specific CPC text labeled § 202.0 / § 202.1 was not visible in the uploaded excerpts; you should check your local copy of CPC § 202 to confirm the precise wording.)
Related provisions
- § 202 — Chapter 2, General definitions (CPC Chapter 2 references present in the CPC).
- § 201.2 — Interchangeability (rules of construction used across Title 24 codes).
- Sections addressing referenced standards and defined terms in other chapters (example: accessibility chapter definitions and undefined‑term fallback): see chapter-definition notes and 11B‑106.* examples in the Building Code (pattern repeated in Title 24 parts).
- Matrix/adoption and amendment notes (showing where California amendments or agency-specific adoption modify definitions): CPC front matter and matrix tables.
NOTE about the controlling items you gave (202.0 and 202.1): I searched the uploaded CPC materials and found Chapter 2 / Section 202 present in the CPC files I was given, but I did not find text explicitly labeled “§ 202.0” or “§ 202.1” in those uploads. Because the exact § 202.0 / § 202.1 numbered text was not retrieved, I could not quote or cite them directly. If you can upload the specific CPC pages containing § 202.0 and § 202.1, or confirm the exact edition/printed page, I will update this article to cite the precise language verbatim and refine the examples to that wording.
Code references
Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:
CPC § 106.3 Medium relevance — show source text
11B- 106.3 Undefined terms. The meaning of terms not specifically listed in Section 11B- 106.5, and not defined in Chapter 2, Section 202, or in referenced standards shall be as defined by collegiate dictionaries in the sense that the context implies.
11B- 106.4 Interchangeability . See Chapter 2, Section 201.2.
11B- 106.5 Defined terms . The following terms are defined in Chapter 2, Section 202.
ACCESS AISLE
ACCESSIBILITY
ACCESSIBILITY FUNCTION BUTTON
ACCESSIBLE
ACCESSIBLE ELEMENT
ACCESSIBLE MEANS OF EGRESS
ACCESSIBLE ROUTE
ACCESSIBLE SPACE
ADAPTABLE
ADDITION
ADJUSTED CONSTRUCTION COST
ADMINISTRATIVE AUTHORITY
ADULT CHANGING FACILITY
AISLE
ALTERATION
AMUSEMENT ATTRACTION
AMUSEMENT RIDE
AMUSEMENT RIDE SEAT
ANSI
APPROVED
APPROVED TESTING AGENCY
AREA OF REFUGE
AREA OF SPORT ACTIVITY
ASSEMBLY AREA
ASSISTIVE LISTENING SYSTEM (ALS)
AUTOMATIC DOOR
AUTOMATIC TELLER MACHINE (ATM)
BATHROOM
BLENDED TRANSITION
BOARDING PIER
BOAT LAUNCH RAMP
BOAT SLIP
BOTTLE FILLING STATION
BUILDING
BUILDING OFFICIAL
CATCH POOL
CCR
CHARACTERS
CHILDREN’S USE
CIRCULATION PATH
CLEAR
11B-4 2025 CALIFORNIA BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING
CLEAR FLOOR SPACE
CLOSED-CIRCUIT TELEPHONE
COMMERCIAL FACILITIES
COMMERCIAL PLACE OF PUBLIC AMUSEMENT
COMMON USE
COMPLY WITH
CROSS SLOPE
CURB CUT
CURB RAMP
DESIGNATED PUBLIC TRANSPORTATION
DESIGNATED-ORIENTED ELEVATOR
DETECTABLE WARNING
DIRECTIONAL SIGN
DISABILITY
DISTRICT AGRICULTURAL ASSOCIATIONS
DORMITORY
DRIVE AISLE
DRIVE-UP ELECTRIC VEHICLE CHARGING STATION
DRIVEWAY
ELECTRIC VEHICLE (EV)
ELECTRIC VEHICLE (EV) CHARGER
ELECTRIC VEHICLE CHARGING SPACE (EV SPACE)
ELECTRIC VEHICLE CHARGING STATION (EVCS)
CPC § 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.
- Where the context requires, the singular includes the plural and the plural includes the singular.
- 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.
- “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.
CPC § 1.5 Medium relevance — show source text
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 2-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
2-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE 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.
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 stated in the present tense include the future; words stated in the masculine gender include the feminine and neuter; and 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 Existing Building Code, California Fire Code, California Electrical Code, California 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 their ordinarily accepted meanings such as the context implies.
SECTION 202—DEFINITIONS
ACCESSORY STRUCTURE. A building or structure used to shelter or support any material, equipment, chattel or occupancy other than a habitable building.
AGRICULTURE (applicable to CCR, Title 14 provisions only). Land used for agricultural purposes as defined in a Local Jurisdiction's zoning ordinances. [CCR Title 14 §1270.01(a)]
APPLICABLE BUILDING. A building that has residential, commercial, educational, institutional or similar occupancy type use.
[A] APPROVED. Acceptable to the code official.
[A] APPROVED AGENCY. An established and recognized organization that is regularly engaged in conducting tests, furnishing inspection services or furnishing product evaluation or certification where such organization has been approved by the code official.
[A] BUILDING. Any structure intended for supporting or sheltering any occupancy.
BUILDING (applicable to CCR, Title 14 provisions only). Any Structure used or intended for supporting or sheltering any use or Occupancy, except those classified as Utility and Miscellaneous Group U. [CCR Title 14 §1270.01(c)]
CPC § 201.1 Medium relevance — show source text
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 other California Codes, such terms shall have the meanings ascribed to them in those codes. [OSHPD 1, 1R, 2, 4 & 5] For terms not defined in this chapter, refer to Chapters 6 and 7 of the California Administrative Code, and Chapter 2 of the California Building Code. [DSA-SS & DSA-SS/CC] Definitions of terms given in Section 4-207 or 4-314 of the California Administrative Code govern over those in Section 202.
201.4 Terms not defined. Where terms are not defined through the methods authorized by this chapter, such terms shall have ordinarily accepted meanings such as the context implies.
SECTION 202—GENERAL DEFINITIONS
ACCESSORY DWELLING UNIT. [HCD 1 & HCD 2] An attached or detached residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. Accessory dwelling units shall include permanent provisions for living, sleeping, eating, cooking and sanitation on the same parcel as the single-family or multi- family dwelling is or will be situated. (See Government Code Section 65852.2.)
[A] ADDITION. An extension or increase in floor area, number of stories, or height of a building or structure.
[A] ALTERATION. Any construction or renovation to an existing structure other than a repair or addition.
[BG] AMBULATORY CARE FACILITY. Buildings or portions thereof used to provide medical, surgical, psychiatric, nursing or similar care on a less than 24-hour basis to persons who are rendered incapable of self-preservation by the services provided or staff has accepted responsibility for care recipients already incapable.
[A] APPROVED. Acceptable to the code official.
Exception: [HCD 1 & HCD 2] “Approved” means meeting the approval of the Enforcing Agency, except as otherwise provided by law, when used in connection with any system, material, type of construction, fixture or appliance as the result of investigations and tests conducted by the agency, or by reason of accepted principles or tests by national authorities, or technical, health, or scientific organi- zations or agencies.
Notes :
1. See Health and Safety Code Section 17920 for “Approved” as applied to residential construction and buildings or struc- tures accessory thereto as referenced in Section 1.8.2. 2. See Health and Safety Code Section 17921.1 for “Approved” as applied to the use of hotplates in residential construction as referenced in Section 1.8.2.
3. See Health and Safety Code Section 19966 for “Approved” as applied to Factory-Built Housing as referenced in Section 1.8.3.2.5.
CMC § 2025 Medium relevance — show source text
Energy Systems| |16|
Stationary Power Plants| |17|
Geothermal Energy Systems and Ambient Temperature Loops| |18|
Referenced Standards| |Appendix A|
Residential Plans Examiner Review Form for HVAC System Design| |Appendix B|
Procedures to be Followed to Place Gas Equipment in Operation| |Appendix C|
Installation and Testing of Oil (Liquid) Fuel-Fired Equipment| |Appendix D|
Fuel Supply: Manufactured/Mobile Home Parks and Recreational Vehicle
Parks| |Appendix E|
Sustainable Practices| |Appendix F|
Sizing of Venting Systems and Outdoor Combustion and Ventilation
Opening Design| |Appendix G|
Example Calculation of Outdoor Air Rate| |Appendix H|
Professional Qualifications| |Appendix I|
Indoor Horticultural Facilities| |Appendix J|
Clean Air Delivery| |Useful Tables|Useful Tables|2025 CALIFORNIA MECHANICAL CODE xiii
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
FORMAT OF THE UNIFORM MECHANICAL CODE
The following is a summary of the scope and intent of the provisions addressed within the chapters and appendices of the Uniform Mechanical Code :
Chapter 1 Administration. Chapter 1 regulates the application, enforcement, and administration of subsequent requirements of the code. As well as establishing the scope of the code, this chapter is concerned with enforcing the requirements contained in the body of the code. A mechanical code, as with any other code, is intended to be adopted as a legally enforceable document to safeguard health, safety, property, and public welfare. The code cannot be effective without satisfactory provisions for its administration and enforcement. The Authority Having Jurisdiction is to review the proposed and completed work and decide whether a mechanical system conforms to the code requirements. As a public servant, the Authority Having Jurisdiction enforces the code in an unbiased proper manner. The design professional is responsible for the design of a safe mechanical system. The contractor is responsible for installing the system in accordance with the plans.
Chapter 2 Definitions. To maintain consistency and encourage the use of common terminology, Chapter 2 establishes definitions to provide clarity of terms and promote the use of a common language throughout the code. Understanding definitions within the context of their application enables greater collaboration, efficiency, standardization, and interpretation in applying and enforcing terms used throughout the code. Codes are technical documents, and every term can impact the meaning of the code text. Terms not defined have a normally accepted meaning.
Chapter 3 General Regulations. Chapter 3 regulates the general requirements, not specific to other chapters, for installing mechanical systems. Many regulations are not specific mechanical requirements but relate to the overall mechanical system. This chapter contains safety requirements for appliance location and installation, appliance and system access, condensate disposal, clearances to combustibles, and return or outside air used in mechanical systems. Listing method of approval, based on applicable nationally recognized standards for the safe and proper installation of mechanical systems, is essential to ensure protection of public health, safety, and welfare. These safety requirements provide protection for piping, tubing, materials, and structures, including provisions for installation practices addressing stress and strain, sleeving, and hanger support.
CPC § 201.3 Medium relevance — show source text
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 Existing Building Code, California Fire Code, California Electrical Code, California 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 their ordinarily accepted meanings such as the context implies.
SECTION 202—DEFINITIONS
ACCESSORY STRUCTURE. A building or structure used to shelter or support any material, equipment, chattel or occupancy other than a habitable building.
AGRICULTURE (applicable to CCR, Title 14 provisions only). Land used for agricultural purposes as defined in a Local Jurisdiction's zoning ordinances. [CCR Title 14 §1270.01(a)]
APPLICABLE BUILDING. A building that has residential, commercial, educational, institutional or similar occupancy type use.
[A] APPROVED. Acceptable to the code official.
[A] APPROVED AGENCY. An established and recognized organization that is regularly engaged in conducting tests, furnishing inspection services or furnishing product evaluation or certification where such organization has been approved by the code official.
[A] BUILDING. Any structure intended for supporting or sheltering any occupancy.
BUILDING (applicable to CCR, Title 14 provisions only). Any Structure used or intended for supporting or sheltering any use or Occupancy, except those classified as Utility and Miscellaneous Group U. [CCR Title 14 §1270.01(c)]
[A] BUILDING OFFICIAL. The officer or other designated authority charged with the administration and enforcement of the California Building Code, or the building official’s duly authorized representative.
CERTIFICATE OF COMPLETION. Written documentation that the project or work for which a permit was issued has been completed in conformance with requirements of this code.
[A] CODE OFFICIAL. The official designated by the jurisdiction to interpret and enforce this code, or the code official’s authorized representative.
CRITICAL FIRE WEATHER. A set of weather conditions (usually a combination of low relative humidity and wind) whose effects on fire behavior make control difficult and threaten firefighter safety.
DEAD-END ROAD (applicable to CCR, Title 14 provisions only). A road that has only one point of vehicular ingress/egress, including cul-de- sacs and roads that loop back on themselves. [CCR Title 14 §1270.01(e)]
DEFENSIBLE SPACE. See Sections 403.1.1 and 601.3.
DRIVEWAY (applicable to CCR, Title 14 provisions only). A vehicular pathway route that serves not more than four (4) Residential Units and any number of noncommercial or nonindustrial Utility or Miscellaneous Group U Buildings. [CCR Title 14 §1270.01(i)]
[BG] DWELLING. A building that contains one or two dwelling units used, intended or designed to be used, rented, leased, let or hired out to be occupied for living purposes.
California Plumbing Code Medium relevance — show source text
PG&E’s preferred PS arrangements are either: a) when the PS customer’s primary distribution line is underground (UG) and the POS is less than 500 feet from the property line, or b) when the PS customer’s primary distribution line is overhead (OH) and the protective device pole (if separate from the POS pole) is less than 50 feet from the property line.
- UG Conductor and POS < 500 Feet
If the PS customer’s primary line is underground and the POS is 500 feet or less from the property line, refer to Figure 1 on Page 12 and Figure 2 on Page 13. The following requirements apply:
A. The PS customer must provide a PG&E approved pad−mounted switchgear enclosure for PG&E’s revenue−metering equipment. See Section 12 on Page 13 for detailed revenue− metering requirements.
B. The PS customer must install primary protection at the POS. This protection may consist of a circuit breaker with phase and ground relays or, depending on the customer’s load, fuses may suffice. If PG&E determines that fuses will not coordinate with PG&E’s source−side protection, then the customer must use a circuit breaker. See Section 8A on Page 6 and Section 8C on Page 7 for circuit breaker and fuse requirements.
C. The PS customer must install conduit from the POS to PG&E’s primary distribution equipment location.
D. PG&E will pull one continuous run of cable and connect to the customer’s POS termination facility, not to exceed 500 feet (subject to an acceptable number of bends in the conduit).
- OH Conductor
If the PS customer’s primary line is overhead, then the first pole at the customer’s property line is the POS. Refer to Figure 3. The following requirements apply:
A. PG&E will install pole−top revenue−metering on the first pole on the PS customer’s property. See Engineering Standard 058779 Pole−Top Primary Metering Installation, (12 or 21 kV Line) for pole−top revenue− metering requirements.
B. The PS customer must install primary protection on the second pole on their property, not to exceed 50 feet from the revenue metering pole. This protection may consist of a recloser or, depending on the customer’s load, fuses may suffice. If PG&E determines that fuses will not coordinate with PG&E’s source−side protection, then the customer must use a recloser. See Section 8C on Page 7 for recloser requirements.
C. The PS customer second pole and the equipment installed on it, must maintain a minimum clearance of 10 feet from the PG&E revenue metering pole and any equipment, crossarms, and wires installed on it.
D. PG&E will interconnect its system with the customer’s system at the revenue−metering pole.
Section 4 Non−Preferred PS Arrangement Proposals
PS customers may propose a non−preferred PS arrangement. This typically occurs when the PS customer’s primary distribution line is UG and the proposed location for the primary switchgear is greater than 500 feet from the property line. PG&E will consider such proposals; however, non−preferred service arrangement proposals may take longer to
094676 Page 2 of 16 Rev. #00: 3/25/2022
CPC § 1.00 Medium relevance — show source text
California Matrix Adoption Tables with California Code of Regulations, Title 19, Division 1
State Fire Marshal T-24 Column: If there is an “X” in the T-24 column under SFM, refer to the California Matrix Adoption Tables explaining how to use the matrix adoption tables.
State Fire Marshal T-19 Column: If there is an “X” in the T-19 column under SFM, this means that the corresponding section was reprinted from the California Code of Regulations (CCR), Title 19, Division 1 into the California Fire Code for the code user’s convenience. The corresponding Title-19 sections were listed in the matrix adoption tables in the order that they appear in the California Fire Code . The scope, applicability and appeals procedures of CCR, Title 19, Division 1 has not changed. For information regarding the specific purpose and scope of CCR, Title 19, unless otherwise specified, refer to CCR, Title 19, Division 1, Chapter 1, Subchapter 1, Article 1, Sections 1.00 through 1.14.
Example:
CHAPTER 3 – GENERAL PRECAUTIONS AGAINST FIRE
Adopting agency BSC BSC-
CGSFM Col5 HCD Col7 Col8 DSA Col10 OSHPD Col12 Col13 Col14 Col15 Col16 Col17 BSCC DPH AGR DWR CEC CA SL SLC Adopting agency BSC BSC-
CGT-24 T-19* 1 2 1-AC AC SS 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)Adopt only those sections
that are listed belowX [California Code of
Regulations, Title 19,
Division 1]X Chapter/Section S A M P L E 301 [T-19 §3.14] X [T-19 §3.19 (a-g)] X 304 X [T-19 §3.07(a)] X [T-19 §3.07(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 1 remains the same.
CPC § 3.6.3 Medium relevance — show source text
3.6.3(8)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR**
CLASS I LIQUID STORAGE IN METAL CONTAINERS OF 1-GALLON CAPACITY OR LESS WITH UNCARTONED
OR CASE-CUT SHELF DISPLAY UP TO 6.5 FEET, AND PALLETIZED STORAGE ABOVE IN A DOUBLE-ROW RACK ARRAYa|IN-RACK SPRINKLER ARRANGEMENT AND DEMAND|Racks
9 to 12 feet|Racks
9 to 12 feet|Not
Applicable|Not
Applicable| |TABLE 5704.3.6.3(8)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR
CLASS I LIQUID STORAGE IN METAL CONTAINERS OF 1-GALLON CAPACITY OR LESS WITH UNCARTONED
OR CASE-CUT SHELF DISPLAY UP TO 6.5 FEET, AND PALLETIZED STORAGE ABOVE IN A DOUBLE-ROW RACK ARRAYa|IN-RACK SPRINKLER ARRANGEMENT AND DEMAND|Racks up to
9 feet deep|Racks up to
9 feet deep|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8 feet
3 inches
horizontal
spacing
2.
One line of
sprinklers at the
6-foot level and
the 11.5-foot
level of storage
3.
Locate in
longitudinal flue
space,
staggered
vertical
4.
Shields required
where multiple-
level|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8 feet
3 inches
horizontal
spacing
2.
One line of
sprinklers at the
6-foot level and
the 11.5-foot
level of storage
3.
Locate in
longitudinal flue
space,
staggered
vertical
4.
Shields required
where multiple-
level| |TABLE 5704.3.6.3(8)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR
CLASS I LIQUID STORAGE IN METAL CONTAINERS OF 1-GALLON CAPACITY OR LESS WITH UNCARTONED
OR CASE-CUT SHELF DISPLAY UP TO 6.5 FEET, AND PALLETIZED STORAGE ABOVE IN A DOUBLE-ROW RACK ARRAYa|CEILING SPRINKLER DESIGN AND DEMAND|Maximum
spacing|Maximum
spacing|100 ft2/head|100 ft2/head| |TABLE 5704.3.6.3(8)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR
CLASS I LIQUID STORAGE IN METAL CONTAINERS OF 1-GALLON CAPACITY OR LESS WITH UNCARTONED
**OR CASE-CUT SHELF DISPLAY UP TO 6.5 FEET,CPC § 3301.2 Medium relevance — show source text
3301.2 Purpose. This chapter prescribes minimum safeguards for construction, alteration and demolition operations to provide reasonable safety to life and property from fire during such operations.
SECTION 3302—DEFINITIONS
3302.1 Terms defined in Chapter 2. Words and terms used in this chapter and defined in Chapter 2 shall have the meanings ascribed to them as defined therein.
SECTION 3303—ADMINISTRATIVE SAFETY CONTROLS
3303.1 Program development and maintenance. The owner or owner’s authorized agent shall be responsible for the development, implementation and maintenance of an approved, written site safety plan establishing a fire prevention program at the project site applicable throughout all phases of the construction, repair, alteration or demolition work. The plan addresses the requirements of this chapter and other applicable portions of this code, the duties of staff and staff training requirements. The plan shall be submitted and approved before a building permit is issued. Any changes to the plan shall be submitted for approval.
3303.1.1 Components of site safety plans. Site safety plans shall include the following as applicable:
Name and contact information of site safety director.
Documentation of the training of the site safety director and fire watch personnel.
Procedures for reporting emergencies.
Fire department vehicle access routes.
Location of fire protection equipment, including portable fire extinguishers, standpipes, fire department connections and fire hydrants.
Smoking and cooking policies, designated areas to be used where approved, and signage locations in accordance with Section 3305.7.
Location and safety considerations for temporary heating equipment.
Hot work permit plan.
Plans for control of combustible waste material.
Locations and methods for storage and use of flammable and combustible liquids and other hazardous materials.
Provisions for site security and where required, for a fire watch.
Changes that affect this plan.
Other site-specific information required by the fire code official.
3303.2 Site safety director. The owner shall designate a person to be the site safety director. The site safety director shall be responsible for ensuring compliance with the site safety plan. The site safety director shall have the authority to enforce the provisions of this chapter and other provisions as necessary to secure the intent of this chapter. Where guard service is provided in accordance with NFPA 241, the site safety director shall be responsible for the guard service.
3303.2.1 Training. Training of fire watch and other responsible personnel in the use of fire protection equipment shall be the responsibility of the site safety director. Records of training shall be kept and made a part of the written plan for the site safety plan.
3303.3 Daily fire safety inspection. The site safety director shall be responsible for completion of a daily fire safety inspection at the project site. Each day, all building and outdoor areas shall be inspected to ensure compliance with the inspection list in this section.
2025 CALIFORNIA FIRE CODE 33-3
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
The results of each inspection shall be documented and maintained on-site until a certificate of occupancy has been issued. Documentation shall be immediately available on-site for presentation to the fire code official upon request.
- Any contractors entering the site to perform hot work each day have been instructed in the hot work safety requirements in Chapter 35, and hot work is performed only in areas approved by the site safety director.
- Temporary heating equipment is maintained away from combustible materials in accordance with the equipment manufacturer’s instructions.
CPC § 2-3 Medium relevance — show source text
SYSTEM||||X|||||||||||||||||||| |VENTILATION||||X|||||||||||||||||||| |WATER HEATER||||X|||||||||||||||||||| |WHOLE-HOUSE MECHANICAL
VENTILATION SYSTEM||||X|||||||||||||||||||| |WILDLAND-URBAN INTERFACE (WUI)|||X|||||||||||||||||||||The state agency does not adopt sections identified with the following symbol: †
2025 CALIFORNIA RESIDENTIAL CODE 2-3
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2-4 2025 CALIFORNIA RESIDENTIAL CODE
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Part II—Definitions
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.
ICC code development note: Code change proposals to definitions in this chapter preceded by a bracketed letter are considered by the IRC—Building Code Development Committee [RB], the IRC—Mechanical/Plumbing Code Development Committee [MP] or the IECC—Residential Code Development Committee [RE] during the Group B (2025) Code Development Cycle.
SECTION R201—GENERAL
R201.1 Scope. Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings indicated in this chapter.
R201.2 Interchangeability. Words used in the present tense include the future; words in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.
R201.3 Terms defined in other codes. Where terms are not defined in this code such terms shall have the meanings ascribed in the California Building Standards Code, Title 24, California Code of Regulations.
R201.4 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.
For applications listed in Section 1.11 regulated by the Office of the State Fire Marshal, where terms are not defined through the meth- ods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. Webster’s Third New International Dictionary of the English Language, Unabridged, shall be considered as providing ordinarily accepted meanings.
SECTION R202—DEFINITIONS
[RB] ACCESS (TO). That which enables a device, an appliance or equipment to be reached by ready access or by a means that first requires the removal or movement of 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 persons and is located on a lot with a proposed or existing primary residence. Accessory dwelling units shall include permanent provisions for living, sleeping, eating, cooking and sanitation on the same parcel as the single-family or multifamily dwelling is or will be situated. (See Government Code Section 65852.2)
CPC § 1.11. Medium relevance — show source text
REPAIR|||X|||||||||||||||||||||| |ROOF REPLACEMENT|||X|||||||||||||||||||||| |SPC SEISMIC SEPARATION||||||||||X|X|||||||||||||| |SUBSTANDARD BUILDING||||X|X|||||||||||||||||||| |SUBSTANTIAL STRUCTURAL
DAMAGE||||||||||X|X|||||||||||||| |UNREINFORCED CONCRETE||||||||||X|X|X||X|X|||||||||| |UNREINFORCED MASONRY||||||||||X|X|X||X|X|||||||||| |UNSAFE|||X|X|X|||||||||||||||||||| |VOLUNTARY STRUCTURAL
IMPROVEMENTS||||||||||X|X|X||X|X|||||||||| |WORK AREA|||X||||||||||||||||||||||The 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.
2-2 2025 CALIFORNIA EXISTING BUILDING 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.
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 other California Codes, such terms shall have the meanings ascribed to them in those codes. [OSHPD 1, 1R, 2, 4 & 5] For terms not defined in this chapter, refer to Chapters 6 and 7 of the California Administrative Code, and Chapter 2 of the California Building Code. [DSA-SS & DSA-SS/CC] Definitions of terms given in Section 4-207 or 4-314 of the California Administrative Code govern over those in Section 202.
201.4 Terms not defined. Where terms are not defined through the methods authorized by this chapter, such terms shall have ordinarily accepted meanings such as the context implies.
SECTION 202—GENERAL DEFINITIONS
ACCESSORY DWELLING UNIT. [HCD 1 & HCD 2] An attached or detached residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. Accessory dwelling units shall include permanent provisions for living, sleeping, eating, cooking and sanitation on the same parcel as the single-family or multi- family dwelling is or will be situated. (See Government Code Section 65852.2.)
CPC § 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
CPC § 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
CPC § 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
CPC § 101.2.2 Medium relevance — show source text
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
16-4 2025 CALIFORNIA EXISTING BUILDING CODE
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REFERENCED STANDARDS
CRC—25: California Residential Code
101.2, 101.4.1, 104.3.1, 109.3.3, 109.3.10, 302.2, 307.1, 308.1, 401.3, 402.1, 405.2.6, 502.2, 502.3, 502.4, 503.2, 503.3, 503.11, 505.2, 505.3, 507.3, 701.3, 702.4, 702.5, 706.2, 708.1, 805.2, 806.4, 809.1, 906.2, 907.1, 1011.2.1, 1103.1, 1103.2, 1103.3, 1104.1, 1201.4, 1302.1.2, 1302.1.3, 1302.1.3, 1303.1.3, 1401.2, 1402.1, 1402.2, 1402.2.1, 1402.3, 1402.4, 1402.5, 1402.6
ICC 300—2023: ICC Standard on Bleachers, Folding and Telescopic Seating and Grandstands
301.1.1, 401.1.1, 1401.1.1
ICC A117.1—2017: Accessible and Usable Buildings and Facilities
CPC § 201.1 Medium relevance — show source text
Division 1
Section|Gov Code
Section|PRC
Section|HSC
Section| |---|---|---|---|---|---|---|---|---|---|---| |Section|Title|Title|Title|Title|Title|Title|Title|Title|Title|Title| |Chapter 2|Definitions|Definitions|Definitions|Definitions|Definitions|Definitions|Definitions|Definitions|Definitions|Definitions| |201|General|Y||||||||| |201.1|Scope|Y||||||||| |201.2|Interchangeability|Y||||||||| |201.3|Terms defined in
other codes|Y||201.3||||||| |201.4|Terms not defined|Y||||||||| |202|Definitions|Y||||||||| ||Accessory structure|Y||||||||| ||Agriculture (T14)|Y||||1270.01(1)||||| ||Applicable building|Y||702A||||||| ||Approved|Y||||||||| ||Approved agency|Y||||||||| ||Building|Y||||1270.01(c)||||| ||Building (T14)|Y||||||||| ||Building official|Y||||||||| ||Certificate of
completion|Y||||||||| ||Code official|Y||||||||| ||Critical fire weather|Y||||||||| ||Dead-end road (T14)|Y||||1270.01(e)||||| ||Defensible space (T14)|Y||||||||| ||Driveway (T14)|Y||||||||| ||Dwelling|Y||702A||1270.01(i)||||| ||Exterior wall assembly|Y||702A||||||| ||Exterior wall covering|Y||702A||||||| ||Fire chief|Y||||||||| ||Fire code official|Y|||202|||||| ||Fire flow calculation
area|Y||||||||| ||Fire hazard severity
zones|Y||702A|4902.1|||2201||| ||Fire protection plan|Y||702A|4902.1|||||| ||Fire weather|Y||||||||| ||Fire-resistance-rated
construction|Y||||||||| ||Fire-smart vegetation|Y|||4902.1|1271.01||||| ||Flame spread index|Y||||||||| ||Fuel|Y||||||||4291(a)(1)(A)| ||Fuel break_(T14)|Y||||1270.01(n)||||| ||Fuel modification|Y||||||||| ||Fuel mosaic|Y||||||||| ||Fuel-loading|Y||||||||| ||Green belt(T14)|Y||||1270.01(o)||||| ||Greenways (T14)|Y||||1270.01(p)||||| ||Hammerhead/T (T14)|Y||||1270.01(q)||||| ||Hazardous land use
(T14)_|Y||||1270.01(r)||||| ||Hazardous materials|Y||||||||| ||Heavy timber
construction|Y||||||||| ||Ignition-resistant
building material|Y||||||||| ||Local responsibility
area (LRA)|Y||702A|4902.1|||||| ||Log wall construction|Y|||||||||2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE APPENDIX H-25
CPC § 2-4 Medium relevance — show source text
2-4 2025 CALIFORNIA FIRE CODE
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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.
CPC § 805.3 Medium relevance — show source text
805.3 Plumbing 105.1, 105.1.1, 105.2, 108.3, 109.3.4, 202, 302.2, 308.1, 408, 702.7, 1009, 1101.2, 1302.1.6, 1501.7, A102.1, A304.1.3, A304.3.2, A304.4.2 Primary Function 202
Ramps 802.2.1, 1305.2.6, B101.3, B101.4 Referenced Standards Chapter 16 Refuge Areas 503.15, 804.10 Registered Design Professional 104.3.3, 106.1, 106.3.4, 106.6, 202, 405.2.3.1, A106.2.3.4, A301.1, A301.2, A301.3, A304.2.2, A304.2.3, A304.4.1, A405.3 Registered Design Professional in Responsible Charge 106.3.4, 106.6 Rehabilitation 104.3.1, 202, 405.2.4 Relocatable Buildings (see Buildings, Relocatable) Relocated Buildings (see Buildings, Relocated) Repair Chapter 4, 101.2, 101.3, 101.4, 101.6, 104.3, 104.3.1, 104.3.2, 104.2.4.1, 105.1, 105.2, 105.2.1, 105.2.2, 105.2.3, 106.2.6, 113.1, 113.2, 115.3, 115.5, 116.1, 116.4, 116.5, 117.1, 202, 301.1, 301.2, 302.2, 302.2.1, 302.4, 308.1, 309.1, 1101.3, 1303.1, 1401.2, 1402.7, 1501.3, 1501.6.6, A105.2, A105.3, A106.1, A106.2.1, A106.2.3.9, A403.2, C101.1, C201.1 Reroofing 705 Risk Category 202, 304.3.1, Table 304.3.1, 304.3.2, Table 304.3.2, 506.5.2, 506.5.3, 506.5.4, 1006.2, 1006.3, 1006.4, A102.2, A401.2, A403.3, C201.2 Roof 308.1, 405.2.5, 503.3, 503.4, 503.7, 503.8, 504.3, 705, 906.4, 906.5, 1501.2.1, 1501.6.5, 1502.1 Diaphragms 503.12, 706.3.2, 906.
CPC § 1323.13.3 Medium relevance — show source text
2, 1323.13.3| |1326.4 - 1326.10|1326.5 - 1326.11| |1505.6 - 1505.14|1505.5 - 1505.13| |Figure 1505.10|Figure 1505.9| |1506.6 - 1506.13|1506.5 - 1506.12| |1603.3 - 1603.4|1603.4 - 1603.5| |Table 1603.4|Table 1603.5| |1603.5 - 1603.19|1603.6 - 1603.20| |1603.20|1503.2.4| |L 402.9 - L 402.11|L 402.8 - L 402.10| |L 404.9 - L 404.12|L 404.8 - L 404.11| |L 411.5, L 411.6|L 411.2, L411.3| |L 411.7|L 411.4| |L 411.9 - L 411.12|L 411.5 - L 411.8|
xxii 2025 CALIFORNIA PLUMBING CODE
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Uniform Plumbing Code – 2024 Edition:
The Uniform Plumbing Code is the most widely adopted plumbing code in the world. The 2024 edition contains complete “turnkey” requirements for the installation and maintenance of plumbing systems, all in one easy to use book.
Uniform Plumbing Code Illustrated Training Manual:
The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing industry. It contains an extensive definitions section and several hundred comprehensive technical diagrams and illustrations. It serves as a textbook, and it also is useful as a valuable tool for explaining the intent and use of the Code.
Uniform Plumbing Code Study Guide:
This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study course for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exercises and fitting identification. A big help in getting you ready for a certification exam!
Guide to Important Code Questions to the Uniform Plumbing Code:
An excellent reference for learning and understanding plumbing code changes and identifies code changes between editions. It is a useful tool for preparing code change proposals.
Uniform Mechanical Code – 2024 Edition:
The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilating, cooking and refrigeration systems.
Uniform Mechanical Code Illustrated Training Manual:
Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. A great reference for everyone involved in Mechanical HVACR design and installation.
Uniform Mechanical Code Study Guide:
CPC § 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
CEC § 202 Medium relevance — show source text
Example:
CHAPTER 2 – DEFINITIONS AND ABBREVIATIONS
Adopting agency BSC BSC-
CGSFM 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-
CGSFM 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 belowS A M P L E Chapter/Section 202 X 2025 CALIFORNIA BUILDING CODE vii
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
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
CPC § 11.0 Medium relevance — show source text
11.0 - 1.11.11_|||X|||||||||||||||||||||| |1.13.0||||||||||||||||||||X||||| |Division II - Scope and
Administration||||||||||||||||||||||||| |101.0||||||||||X|X|X||X|X|||||||||| |102.0||||||||||X|X|X||X|X|||||||||| |103.0||||||||||X|X|X||X|X|||||||||| |104.2 Items 1 & 2||||X|X|||||||||||||||||||| |104.3.1||||||||||X|X|X||X|X|||||||||| |104.4.3.1|X|||||||||||||||||||||||| |105.0||||||||||X|X|X||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.
2 2025 CALIFORNIA PLUMBING CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
CHAPTER 1
ADMINISTRATION
DIVISION I
CALIFORNIA ADMINISTRATION
1.1.0 General.
1.1.1 Title. These regulations shall be known as the Califor- nia Plumbing Code, may be cited as such and will be referred to herein as “this code.” The California Plumbing Code is Part 5 of thirteen parts of the official compilation and publi- cation of the adoption, amendment, and repeal of plumbing regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part incorporates by adoption the 2024 Uniform Plumb- ing Code of the International Association of Plumbing and Mechanical Officials with necessary California amendments.
1.1.2 Purpose. The purpose of this code is to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, access to persons with disabilities, sanitation, adequate lighting and ventilation, and energy con- servation; safety to life and property from fire and other haz- ards attributed to the built environment; and to provide safety to fire fighters and emergency responders during emergency operations.
1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, use and occupancy, location, main- tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.
CPC § 1701.1 Medium relevance — show source text
TABLE 1701.1 (continued) REFERENCED STANDARDS
STANDARD NUMBER STANDARD TITLE APPLICATION REFERENCED
SECTIONASTM D3261-2016 Standard Specification for Butt Heat Fusion Polyethylene (PE)
Plastic Fittings for Polyethylene (PE) Plastic Pipe and TubingFittings Table 604.1 ASTM D4068-2017 Standard Specification for Chlorinated Polyethylene (CPE)
Sheeting for Concealed Water-Containment MembraneMiscellaneous 408.8.2 ASTM D4551-2017 Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic
Flexible Concealed Water-Containment MembraneMiscellaneous 408.8.1 ASTM D6104-1997
(R2017)e1Standard Practice for Determining the Performance of
Oil/Water Separators Subjected to Surface Run-OffInterceptors Table 1009.1 ASTM E84-2021a Standard Test Method for Surface Burning Characteristics of
Building MaterialsMiscellaneous 701.2(2), 903.1(2),
1101.4ASTM E119-2020 Standard Test Methods for Fire Tests of Building Construction
and MaterialsMiscellaneous 1404.3, 1405.3 ASTM E814-2013a (R2017) Standard Test Method for Fire Tests of Penetration Firestop
SystemsMiscellaneous 1404.3, 1405.3 ASTM F409-2017 Standard Specification for Thermoplastic Accessible and
Replaceable Plastic Tube and Tubular FittingsPiping, Plastic 404.1 ASTM F437-2021 Standard Specification for Threaded Chlorinated Poly (Vinyl
Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80Fittings Table 604.1 ASTM F438-2017 Standard Specification for Socket-Type Chlorinated Poly
(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 40Fittings Table 604.1 ASTM F439-2019 Standard Specification for Chlorinated Poly (Vinyl Chloride)
(CPVC) Plastic Pipe Fittings, Schedule 80Fittings Table 604.1 ASTM F441/F441M-2020 Standard Specification for Chlorinated Poly (Vinyl Chloride)
(CPVC) Plastic Pipe, Schedules 40 and 80Piping Table 604.1 ASTM F442/F442M-2020 Standard Specification for Chlorinated Poly (Vinyl Chloride)
(CPVC) Plastic Pipe (SDR-PR)Piping Table 604.1, 605.2.2 ASTM F493-2020 Standard Specification for Solvent Cements for Chlorinated
Poly (Vinyl Chloride) (CPVC) Plastic Pipe and FittingsJoints 605.2.2, 605.3.1 ASTM F628-2012e3 Standard Specification for Acrylonitrile-Butadiene-Styrene
(ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe with a
Cellular CorePiping Table 701.2 ASTM F656-2021 Standard Specification for Primers for Use in Solvent Cement
Joints of Poly (Vinyl Chloride) (PVC) Plastic Pipe and FittingsJoints 605.2. CPC § 1.11. Medium relevance — show source text
Way_||||||X|X|||||||||||||||||| |Waiting Room|||X|||||||||||||||||||||| |Walk||||||X|X|||||||||||||||||| |Waterline||||||||||||||||||X||||||| |Wet Bar|||||||X|||||||||||||||||| |Wheelchair||||||X|X|||||||||||||||||| |Wheelchair Space|||||||X|||||||||||||||||| |Winery Caves|||X|||||||||||||||||||||| |Work Area Equipment|||||||X|||||||||||||||||| |Workstation_ (2nd paragraph_
only)|||||||X||||||||||||||||||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.
2-10 2025 CALIFORNIA BUILDING 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 purposes of the code.
ICC code development note: Code change proposals to sections preceded by the designation [A], [BG] or [BS] will be considered by one of the code development committees meeting during the 2025 (Group B) Code Development Cycle.
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 Energy Code, Califor- nia Existing Building Code, California Fire Code, California Green Building Standards Code, California Electrical Code, California 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.
For applications listed in Section 1.11 regulated by the Office of the State Fire Marshal, where terms are not defined through the meth- ods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. Webster’s Third New International Dictionary of the English Language, Unabridged, shall be considered as providing ordinarily accepted meanings.
SECTION 202—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.
[BS] AAC MASONRY. Masonry made of autoclaved aerated concrete (AAC) units, manufactured without internal reinforcement and bonded together using thin- or thick-bed mortar.
CPC § 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-
CGSFM HCD Col6 Col7 DSA Col9 OSHPD Col11 Col12 Col13 Col14 Col15 BSCC DPH AGR DWR CEC CA SL SLC Adopting agency BSC BSC-
CGSFM 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 belowChapter/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
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
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
CPC § 111.1 Medium relevance — show source text
8|Abatement of
violation|N||||||||| |110|Certificate of
occupancy|Y||111.1||||||| |110.1|General|Y||701A.4 #2||||||| |110.2|Certificate of
occupancy|Y||||||||| |110.3|Temporary
occupancy|Y||||||||| |110.4|Revocation|Y||||||||| |111|Service utilities|Y||||||||| |111.1|Connection of service
utilities|Y||||||||| |111.2|Temporary
connection|Y||||||||| |111.3|Authority to discon-
nect service utilities|Y||||||||| |112|Means of appeals|N||||||||| |112.1|General|N||||||||| |112.2|Limitations on
authority|N||||||||| |112.3|Qualifications|N||||||||| |112.4|Administration|N||||||||| |113|Stop work order|Y||||||||| |113.1|Authority|Y||||||||| |113.2|Issuance|Y||||||||| |113.3|Emergencies|Y||||||||| |113.4|Failure to comply|Y|||||||||APPENDIX H-24 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS
2025 CWUIC—continued Col2 Adopted
Yes/NoIWUIC
SectionCBC
SectionCFC
SectionTitle 14,
Division 1.5
SectionTitle 19,
Division 1
SectionGov Code
SectionPRC
SectionHSC
SectionSection Title Title Title Title Title Title Title Title Title Title Chapter 2 Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions 201 General Y 201.1 Scope Y 201.2 Interchangeability Y 201.3 Terms defined in
other codesY 201.3 201.4 Terms not defined Y 202 Definitions Y Accessory structure Y Agriculture (T14) Y 1270.01(1) Applicable building Y 702A Approved Y Approved agency Y Building Y 1270.01(c) Building (T14) Y Building official Y Certificate of
completionY Code official Y Critical fire weather Y Dead-end road (T14) Y 1270.01(e) Defensible space (T14) Y Driveway (T14) Y Dwelling Y 702A 1270.
Frequently asked questions
When I see a capitalized term in a CPC provision, do I always check § 202 first?
Yes — a capitalized term generally signals a defined term; check § 202 (Chapter 2) in the CPC first. If not defined there, follow the hierarchy (chapter-specific definitions, referenced standard, rules of construction, then ordinary meaning).
What if the CPC points to a referenced standard for the term?
Use the referenced standard’s definition for the purposes of that provision; the CPC text or the referenced‑standard citation will indicate this.
How do I treat singular/plural differences in a requirement?
Apply the interchangeability rules (e.g., singular includes plural) in § 201.2 of the California code of construction when the code does not state otherwise.
Can a local jurisdiction override CPC definitions?
Local amendments must be adopted according to law; always check the CPC adoption/matrix tables and local amendments. The CPC matrix and front matter show adopted/amended sections.
If a term isn’t in CPC § 202, can I use a dictionary?
Only as a last resort. The codes instruct using referenced definitions and rules of construction before resorting to ordinary dictionary meanings.
More in California Plumbing Code
- Administration
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- General Regulations
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- Water Heaters
- Water Supply and Distribution
- Sanitary Drainage (Drain, Waste, and Vent)
- Indirect Wastes
- Vents
- Traps and Interceptors
- Storm Drainage
- Fuel Gas Piping
- Health Care Facilities — Medical Gas and Medical Vacuum Systems
- Alternate Water Sources and Nonpotable Rainwater Catchment Systems
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