Title 24 · California Energy Code

Scope & applicability of the California Energy Code (Part 6)

Part 6 (the California Energy Code) defines which buildings and systems are regulated, the mandatory vs. alteration/addition responsibilities, and the key sections—§100, §110, §141 and §150—that direct compliance and enforcement.

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Last reviewed: July 6, 2026

Overview

The California Energy Code (Title 24, Part 6) establishes the State’s mandatory building energy‑efficiency requirements — the rules that govern energy performance of new buildings, systems, equipment and building components in California. Section §110.0 explains the systems‑and‑equipment manufacturing and installation requirements and ties those requirements to the buildings that fall within the scope of §100.0(a) . The code also organizes compliance paths, climate‑zone mapping (see Figure 100.1‑A), and software/validation references under §100.1 and related sections .

Part 6 distinguishes new‑construction mandates from which measures apply to additions and alterations: Sections §141.0 and §150.2 (and cross‑references such as §150.1(b)) identify which mandatory provisions carry over to repairs, alterations and additions, while other provisions remain limited to newly constructed buildings . Voluntary/optional higher‑performance approaches are handled through related CALGreen appendices and local ordinances, which must follow the filing and approval process described in the Green Building Standards material when adopted locally .

Part 6 is embedded in Title 24’s structure of scope and administration; the California Energy Commission (CEC) is the state agency responsible for the Energy Code, and Section 100 is the primary gateway to understanding which buildings, uses, and exceptions are regulated under Part 6 file.

In this section

Code references

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

  • § 100.1 High relevance — show source text

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    ALL OCCUPANCIES—GENERAL PROVISIONS

    FIGURE 100.1-A CALIFORNIA CLIMATE ZONES

    Climate Zones for Residential and Nonresidential Occupancies

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    2 ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE

    MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS

    SECTION 110.0—SYSTEMS AND EQUIPMENT—GENERAL

    Sections 110.1 through 110.12 specify requirements for manufacturing, construction and installation of certain systems, equipment, appliances and building components that are installed in buildings within the scope of Section 100.0(a).

    Note: The requirements of Sections 110.0 through 110.12 apply to newly constructed buildings. Sections 141.0 and 150.2 specify which requirements of Sections 110.1 through 110.12 also apply to additions and alterations to existing buildings.

    (a) General Requirements. Systems, equipment, appliances and building components shall only be installed in a building within the scope of Section 100.0(a) regulated by Part 6 only if:

    1. The manufacturer has certified that the system, equipment, appliances or building component complies with the applicable manufacturing provisions of Sections 110.1 through 110.12; and
    2. The system, equipment, appliance or building component complies with all applicable installation provisions of Sections 110.1 through 110.12.

    (b) Certification Requirements for Manufactured Systems, Equipment, Appliances and Building Components.

    1. Appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations shall only be installed if they have been certified to the Energy Commission by the manufacturer, pursuant to the provisions of Title 20 California Code of Regulations, Section 1606; or
    2. Systems, equipment, appliances and building components that are required by Part 6 or the Reference Appendices to be certified to the Energy Commission, which are not appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations, shall only be installed if they are certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that: A. All the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable requirements of Part 6; and B. The equipment, product, or device was tested using the test procedure specified in Part 6 if applicable
    3. The certification status of any system, equipment, appliance or building component shall be confirmed only by reference to: A. A directory published or approved by the Commission; or B. A copy of the application for certification from the manufacturer and the letter of acceptance from the Commission staff; or C. Written confirmation from the publisher of a Commission-approved directory that a device has been certified; or D. A Commission-approved label on the device.

    Note: Part 6 does not require a builder, designer, owner, operator, or enforcing agency to test any certified device to determine its compliance with minimum specifications or efficiencies adopted by the Commission.

  • § 201.1 High relevance — show source text

    SECTION A4.201—GENERAL

    A4.201.1 Scope. For the purposes of mandatory energy efficiency standards in the California Building Standards Code (Title 24), the California Energy Commission will continue to adopt mandatory standards in the California Energy Code (Title 24, Part 6). It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required approval of the California Energy Commission in compliance with Title 24, Part 1, Section 10-106 prior to enforcement. Once the required filing has been verified and finding has been made by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modification along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement. (Title 24, Part 1, Section 10-106 is available at https://www.energy.ca.gov/programs-and-topics/programs/build- ing-energy-efficiency-standards/2025-building-energy-efficiency

    SECTION A4.202—DEFINITIONS

    A4.202.1 Definitions. The following terms are defined in Chapter 2.

    ENERGY BUDGET.

    LONG-TERM SYSTEM COST (LSC).

    RECOVERED ENERGY, ON-SITE.

    SOLAR POOL HEATING SYSTEM.

    SECTION A4.203—PERFORMANCE APPROACH FOR NEWLY CONSTRUCTED BUILDINGS

    A4.203.1 Energy efficiency. Newly constructed low-rise residential buildings shall comply with Sections A4.203.1.1 through A4.203.1.4.

    A4.203.1.1 Long-term system cost (LSC). LSC rating for the building’s Proposed Design shall be computed by Compliance Software certified by the Energy Commission as specified in Title 24, Part 6, Section 100.1 and 150.1(b), and shall reduce the LSC required in the Compliance Software for minimum performance-based compliance with the California Energy Code by the compliance margin specified in Table A4.203.1.1. The rating shall be included in the Certificate of Compliance documentation.

    TABLE A4.203.1.1—RECOMMENDED LSC MARGINS BY CLIMATE ZONES Col2
    CALIFORNIA ENERGY CODE CLIMATE ZONE TOTAL LSC COMPLIANCE MARGIN
    1 2.70
    2 1.62
    3 1.10
    4 1.11
    5 1.01
    6 0.24
    7 0.24
    8 0.21
    9 0.20
    10 0.18
    11 1.11
    12 1.05
    13 0.96
    14 1.21
    15 0.59
    16 1.68
    Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets. Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-9

  • § 201.1 Medium relevance — show source text

    APPENDIX A5-12 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    A5 NONRESIDENTIAL VOLUNTARY MEASURES

    DIVISION A5.2 – ENERGY EFFICIENCY

    SECTION A5.201—GENERAL

    A5.201.1 Scope. For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards. It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required findings of the California Energy Commission in compliance with Title 24, Part 1, Section 10-106, prior to enforcement. Once the required filing has been verified and finding has been made by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modifications along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement (Title 24, Part 1, Section 10-106 is available at https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2025-building-energy-efficiency

    SECTION A5.202—DEFINITIONS

    A5.202.1 Definitions. The following terms are defined in Chapter 2.

    ENERGY BUDGET.

    GEOTHERMAL.

    LONG-TERM SYSTEM COST (LSC).

    PROCESS.

    RECOVERED ENERGY, ON-SITE.

    SOLAR ACCESS.

    SOLAR POOL HEATING SYSTEM.

    SECTION A5.203—PERFORMANCE APPROACH

    A5.203.1 Energy efficiency. Nonresidential, high-rise residential and hotel/motel buildings that include lighting and/or mechanical systems shall comply with Sections A5.203.1.1 and A5.203.1.2. Newly constructed buildings and additions are included in the scope of these sections. Buildings permitted without lighting or mechanical systems shall comply with Section A5.203.1.1 but are not required to comply with Section A5.203.1.2.

    A5.203.1.1 Tier 1 and Tier 2 prerequisites. To comply with Tier 1, ONE of the following efficiency measures is required for all applicable components of the building project. To comply with Tier 2, TWO of the following efficiency measures are required.

    A5.203.1.1.1 Outdoor lighting. Outdoor lighting requirements are described below.

    A5.203.1.1.1.1 Newly installed outdoor lighting power shall be no greater than 90 percent of the Allowed Outdoor Lighting Power, and general hardscape lighting within the scope of Title 24, Part 6, Section 140.7(b)1 shall have a color temperature no higher than 3000K. The Allowed Outdoor Lighting Power calculation is specified in Title 24, Part 6, Section 140.7, Requirements for Outdoor Lighting.

    Exception to Section A5.203.1.1.1.1:

  • § 15-11 Medium relevance — show source text

    COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

    FOR REFERENCE ONLY: The following table has been reprinted from the IES TM-15-11 Reference standard, see Section 5.106.8.

    IES TM-15-11 TABLE A-1—BACKLIGHT RATINGS (Maximum Zonal Lumens) Col2 Col3 Col4 Col5 Col6
    SECONDARY SOLID ANGLE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE
    SECONDARY SOLID ANGLE LZ 0 LZ 1 LZ 2 LZ 3 LZ 4
    Backlight High (BH)
    60 to 80 degrees    		 110 500 1,000 2,500 5,000
    Backlight Medium (BM)
    30 to < 60 degrees    		 220 1,000 2,500 5,000 8,500
    Backlight Low (BL)
    0 to < 30 degrees    		 110 500 1,000 2,500 5,000

    FOR REFERENCE ONLY: The following table has been reprinted from the California Energy Code, Part 6, Title 24, see Section 5.106.8.

    TABLE 130.2-A—UPLIGHT RATINGS (Maximum Zonal Lumens) Col2 Col3 Col4 Col5 Col6
    SECONDARY SOLID ANGLE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE MAXIMUM ZONAL LUMENS PER OUTDOOR LIGHTING ZONE
    SECONDARY SOLID ANGLE LZ 0 LZ 1 LZ 2 LZ 3 LZ 4
    Uplight High (UH)
    100 to 180 degrees    		 0 10 50 500 1,000
    Uplight Low (UL)
    90 to < 100 degrees    		 0 10 50 500 1,000

    FOR REFERENCE ONLY: The following table has been reprinted from the California Energy Code, Part 6, Title 24, see Section 5.106.8.

    TABLE 130.2-B—GLARE RATINGS (Maximum Zonal Lumens) Col2 Col3 Col4 Col5 Col6
    GLARE RATING FOR ASYMMETRICAL LUMINAIRE TYPES
    (Type I, Type II, Type III, Type IV)    		 GLARE RATING FOR ASYMMETRICAL LUMINAIRE TYPES
    **(Type I, Type II, Type III,
  • § 1.2 Medium relevance — show source text

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    How to Distinguish Between Model Code Language and California Amendments

    To distinguish between model code language and the incorporated California amendments, including exclusive California standards, California amendments will appear in italics.

    [BSC] This is an example of a state agency acronym used to identify an adoption or amendment by the agency. The acronyms will appear at California Amendments and in the Matrix Adoption Tables. Sections 1.2 through 1.14 in Chapter 1, Division 1 of the Cali- fornia Building Code, explain the used acronyms, the application of state agency adoptions to building occupancies or building features, the enforcement agency as designated by state law (may be the state adopting agency or local building or fire official), the authority in state law for the state agency to make the adoption, and the specific state law being implemented by the agency’s adoption. The following acronyms are used in Title 24 to identify the state adopting agency making an adoption.

    Legend of Acronyms of Adopting State Agencies

    BSC California Building Standards Commission (see Section 1.2)

    BSC-CG California Building Standards Commission-CALGreen (see Section 1.2.2)

    BSCC Board of State and Community Corrections (see Section 1.3)

    SFM Office of the State Fire Marshal (see Section 1.11)

    HCD 1 Department of Housing and Community Development (see Section 1.8.2.1.1)

    HCD 2 Department of Housing and Community Development (see Section 1.8.2.1.3)

    HCD 1/AC Department of Housing and Community Development (see Section 1.8.2.1.2)

    DSA-AC Division of the State Architect-Access Compliance (see Section 1.9.1)

    DSA-SS Division of the State Architect-Structural Safety (see Section 1.9.2)

    DSA-SS/CC Division of the State Architect-Structural Safety/Community Colleges (see Section 1.9.2.2)

    OSHPD 1 Office of Statewide Hospital Planning and Development (see Section 1.10.1)

    OSHPD 1R Office of Statewide Hospital Planning and Development (see Section 1.10.1)

    OSHPD 2 Office of Statewide Hospital Planning and Development (see Section 1.10.2)

    OSHPD 3 Office of Statewide Hospital Planning and Development (see Section 1.10.3)

    OSHPD 4 Office of Statewide Hospital Planning and Development (see Section 1.10.4)

    OSHPD 5 Office of Statewide Hospital Planning and Development (see Section 1.10.5)

    OSHPD 6 Office of Statewide Hospital Planning and Development (see Section 1.10.6)

    DPH Department of Public Health (see Section 1.7)

    AGR Department of Food and Agriculture (see Section 1.6)

    CEC California Energy Commission (see Section 100 in Part 6, the California Energy Code)

  • § 1-12 Medium relevance — show source text

    1.9 Division of the State Architect . . . . . . . . . . . . . . . . . . . . 1-12

    1.10 Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

    1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-15

    1.12 State Librarian. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

    1.13 Department of Water Resources . . . . . . . . . . . . . . . . . . 1-20

    1.14 California State Lands Commission . . . . . . . . . . . . . . . 1-20

    DIVISION II – SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . 1-21

    PART 1—SCOPE AND APPLICATION. . . . . . . . . . . . . . . . . . . . . . . 1-21

    101 Scope and General Requirements. . . . . . . . . . . . . . . 1-21

    102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

    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

  • § 1-10 Medium relevance — show source text

    1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-10

    1.12 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.13 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.14 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    DIVISION II— SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . 1-17

    Part 1—Scope and Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

    R101 Scope and General Requirements. . . . . . . . . . . . . . . 1-17

    R102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

    Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-18

    R103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-18

    R104 Duties and Powers of the Building Official . . . . . . . 1-18

    R105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

    R106 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-22

    R107 Temporary Structures and Uses . . . . . . . . . . . . . . . . 1-23

    R108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R110 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-25

    R111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

  • § 8.10 Medium relevance — show source text

    1.8.10 Other Building Regulations . . . . . . . . . . . . . . . . . . . . . . 1-13

    1.9 Division of the State Architect . . . . . . . . . . . . . . . . . . . . 1-13

    1.10 Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-17

    1.12 State Librarian. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

    1.13 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

    1.14 California State Lands Commission . . . . . . . . . . . . . . . 1-22

    DIVISION II – SCOPE AND ADMINISTRATION . . . . . . . . . . . . 1-23

    Part 1—Scope and Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    101 Scope and General Requirements. . . . . . . . . . . . . . . 1-23

    102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

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

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

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

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

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

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

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

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

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

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

  • § 1.10.3 Medium relevance — show source text

    1.10.3 OSHPD 3. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application— Licensed clinics and any freestanding building under a hospital license where outpatient clinical services are provided.

    Enforcing agency— Local building department.

    1.10.3.1 Applicable administrative standards. 1. Title 24, Part 1, California Code of Regulations: Chapter 7. 2. Title 24, Part 2, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    3. Title 24, Part 10, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    1.10.3.2 Applicable building standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10 and 11.

    The provisions of Title 24, Part 10, as adopted and amended by OSHPD, shall apply to the applications listed in Section 1.10.3.

    OSHPD 3 adopts the following building standards in Title 24, Part 10: Chapters 2, 3, 4, 5 and 16.

    Authority— Health and Safety Code Sections 127010, 127015 and 1226.

    References— Health and Safety Code Sections 127010, 127015, 129885 and 1226, Government Code Section 54350 and State Constitution Article 11, Section 7.

    1.10.4 OSHPD 4. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application— Correctional treatment centers.

    Enforcing agency— Health Care Access and Information/Office of Statewide Hospital Planning and Development (OSHPD). The office shall enforce the California Energy Commission – Energy Regulations, the Division of the State Architect—Access Compliance regulations, and the regulations of the Office of the State Fire Marshal for the above-stated facility types.

    1.10.4.1 Applicable administrative standards. 1. Title 24, Part 1, California Code of Regulations: Chapter 7.

    1-14 2025 CALIFORNIA EXISTING BUILDING CODE

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    ADMINISTRATION

    2. Title 24, Part 2, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    3. Title 24, Part 10, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    1.10.4.2 Applicable building standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10 and 11.

  • § 1.10.4.3 Medium relevance — show source text

    1.10.4.3 Identification of amendments. For applications listed in Section 1.10.4, amendments appear in this code preceded with the acronym [OSHPD 4], unless the entire chapter is applicable.

    1.10.4.4 Reference to other chapters. Where reference is made within this code to sections in Chapters 16, 17, 18, 19, 21 and 22, the respective sections in Chapters 16A, 17A, 18A, 19A, 21A and 22A shall apply instead.

    Authority— Health and Safety Code Sections 127010, 127015 and 129790.

    References— Health and Safety Code Sections 127010, 127015, 1275 and 129675 through 130070.

    1.10.5 OSHPD 5. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application— Acute psychiatric hospital buildings.

    Enforcing agency— Health Care Access and Information/Office of Statewide Hospital Planning and Development (OSHPD). The office shall also enforce the California Energy Commission—Energy Regulations, the Division of the State Architect—Access Compliance regulations and the regulations of the Office of the State Fire Marshal for the above-stated facility type.

    1.10.5.1 Applicable administrative standards. 1. Title 24, Part 1, California Code of Regulations: Chapter 7. 2. Title 24, Part 2, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter I, Division II.

    1.10.5.2 Applicable building standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10 and 11.

    The provision of Title 24, Part 2, as adopted and amended by OSHPD, shall apply to the applications listed in Section 1.10.5.

    OSHPD 5 adopts the following building standards in Title 24, Part 2:

    Chapters 2 through 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 30, 31, 32, 33 and 35.

    1.10.5.3 Identification of amendments. For applications listed in Section 1.10.5, amendments appear in this code preceded with the acronym [OSHPD 5].

    Authority— Health and Safety Code Sections 127010, 127015, 1275 and 129850.

    References— Health and Safety Code Sections 127010, 127015, 129680, 1275 and 129675 through 130070.

    1.10.6 OSHPD 6. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application —Chemical dependency recovery hospital not within an acute care hospital building or an acute psychiatric facility.

    Enforcing agency —Local building department.

  • § 1.10.4.3 Medium relevance — show source text

    OSHPD 4 adopts the following building standards in Title 24, Part 10: Chapters 2, 3, 4, 5 and 16.

    1.10.4.3 Identification of amendments. For applications listed in Section 1.10.4, amendments in this code appear in this code preceded with the acronym [OSHPD 4], unless the entire chapter is applicable.

    Authority— Health and Safety Code Sections 127010, 127015, 1275 and 129790.

    References— Health and Safety Code Sections 127010, 127015, 1275 and 129674 through 130070.

    1.10.5 OSHPD 5. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application— Acute psychiatric hospital buildings.

    Enforcing agency— Health Care Access and Information/Office of Statewide Hospital Planning and Development (OSHPD). The office shall enforce the California Energy Commission – Energy Regulations, the Division of the State Architect—Access Compliance regulations, and the regulations of the Office of the State Fire Marshal for the above-stated facility types.

    1.10.5.1 Applicable administrative standards. 1. Title 24, Part 1, California Code of Regulations: Chapter 7. 2. Title 24, Part 2, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    3. Title 24, Part 10, California Code of Regulations: Sections 1.1 and 1.10, Chapter 1, Division I, and as adopted in Chapter 1, Division II.

    1.10.5.2 Applicable building standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10 and 11.

    The provision of Title 24, Part 10, as adopted and amended by OSHPD, shall apply to the applications listed in Section 1.10.5.

    OSHPD 5 adopts the following building standards in Title 24, Part 10: Chapters 2, 3, 4, 5 and 16.

    1.10.5.3 Identification of amendments . For applications listed in Section 1.10.5, amendments appear in this code preceded with the acronym [OSHPD 5].

    Authority— Health and Safety Code Sections 127010, 127015, 1275 and 129850.

    References— Health and Safety Code Sections 127010, 127015, 129680, 1275 and 129675 through 130070.

    1.10.6 OSHPD 6. Specific scope of application of the agency responsible for enforcement, enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    Application— Chemical dependency recovery hospital buildings and any freestanding building under a general acute care or acute psychiatric hospital license where chemical dependency recovery services are provided.

    Enforcing agency— Local building department.

  • § 1.2 Medium relevance — show source text

    Legend of Acronyms of Adopting State Agencies

    BSC California Building Standards Commission (see Section 1.2)

    BSC-CG California Building Standards Commission-CALGreen (see Section 1.2.2)

    BSCC Board of State and Community Corrections (see Section 1.3)

    SFM Office of the State Fire Marshal (see Section 1.11)

    HCD 1 Department of Housing and Community Development (see Section 1.8.2.1.1)

    HCD 2 Department of Housing and Community Development (see Section 1.8.2.1.3)

    HCD 1/AC Department of Housing and Community Development (see Section 1.8.2.1.2)

    DSA-AC Division of the State Architect-Access Compliance (see Section 1.9.1)

    DSA-SS Division of the State Architect-Structural Safety (see Section 1.9.2)

    DSA-SS/CC Division of the State Architect-Structural Safety/Community Colleges (see Section 1.9.2.2)

    OSHPD 1 Office of Statewide Hospital Planning and Development (see Section 1.10.1)

    OSHPD 1R Office of Statewide Hospital Planning and Development (see Section 1.10.1)

    OSHPD 2 Office of Statewide Hospital Planning and Development (see Section 1.10.2)

    OSHPD 3 Office of Statewide Hospital Planning and Development (see Section 1.10.3)

    OSHPD 4 Office of Statewide Hospital Planning and Development (see Section 1.10.4)

    OSHPD 5 Office of Statewide Hospital Planning and Development (see Section 1.10.5)

    OSHPD 6 Office of Statewide Hospital Planning and Development (see Section 1.10.6)

    DPH Department of Public Health (see Section 1.7)

    AGR Department of Food and Agriculture (see Section 1.6)

    CEC California Energy Commission (see Section 100 in Part 6, the California Energy Code)

    CA Department of Consumer Affairs (see Section 1.4): Board of Barbering and Cosmetology Board of Examiners in Veterinary Medicine Board of Pharmacy Acupuncture Board Bureau of Household Goods & Services Structural Pest Control Board (SPCB)

    SL State Library (see Section 1.12)

    SLC State Lands Commission (see Section 1.14)

    DWR Department of Water Resources (see Section 1.13 of Chapter 1 of the California Plumbing Code in Part 5 of Title 24)

    The state agencies are available to answer questions about their adoptions. Contact information is provided on page iv of this code.

    To learn more about the use of this code refer to pages viii and ix. Training materials on the application and use of this code are available at the website of the California Building Standards Commission www.dgs.ca.gov/bsc.

    vi 2025 CALIFORNIA RESIDENTIAL CODE

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

    California Matrix Adoption Tables

    Format of the California Matrix Adoption Tables

Frequently asked questions

Who must comply with Part 6?

All buildings and building systems that fall within the scope defined at §100.0 (and related subsections) must comply with the applicable Part 6 requirements; specific obligations for equipment manufacture/installation are set out in §110.0 and applicability to additions/alterations is clarified in §141.0 and §150.2 .

How do I know which compliance path to use?

Section §100.1 and the referenced compliance sections (for example §150.1(b)) set out the permitted compliance approaches (prescriptive, performance, and compliance software requirements) and identify certified software and documentation pathways .

Do local jurisdictions have flexibility to require more?

Yes — voluntary higher‑performance measures appear in CALGreen appendices and local jurisdictions may adopt stricter local standards, but those local changes require CEC/CBSC filing and approval before enforcement, per the Green Building Standards guidance .

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