CBC · California Building Code

Where are the energy requirements in the California Building Code?

Short: The CBC organizes and points to energy requirements (see Chapter 13 and § A101.4.6 in the CBC index), but the mandatory technical rules — lighting, HVAC, appliances, solar readiness and verification — are written in the California Energy Code (Title 24, Part 6). Use the Part 6 sections (for example § 110.1, § 110.2, § 110.10) and the CALGreen appendices for voluntary higher tiers; local changes to energy rules require Energy Commission approval.

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Last reviewed: July 5, 2026

What the code requires

The California Building Code (CBC) does not contain the full technical energy-efficiency standards itself; it points to and incorporates the California Energy Code (Title 24, Part 6) as the mandatory source of energy rules for design, construction, additions and alterations. The CBC identifies energy-efficiency as a topic in Chapter 13 and cross‑references administrative/applicability provisions such as § A101.4.6 that tie energy requirements into the CBC framework.

(Full technical mandates — appliance efficiencies, lighting, HVAC, solar‑readiness, energy budgets and verification/testing — are in Title 24, Part 6; the CBC locates and refers projects to those Part 6 sections.)

Requirements in detail

1) Where the mandatory technical rules live

  • Primary technical standard: California Energy Code — Title 24, Part 6. The Energy Code contains the mandatory prescriptive and performance rules that govern appliances, space conditioning, lighting, solar readiness, acceptance testing, and energy budget calculations. See, for example, Part 6 sections such as § 110.1 (appliance verification), § 110.2 (space‑conditioning equipment efficiency), and § 110.10 (solar readiness).

  • CBC-level location and administrative references:

    • CBC Chapter 13 (Energy Efficiency) is the chapter heading through which the CBC organizes energy-related cross-references.
    • Appendix / administrative reference: § A101.4.6 is the controlling CBC appendix cross‑reference that the CBC uses for energy efficiency (the CBC index explicitly lists “Energy Efficiency Chapter 13, 101.4.6, 110.3.9”). (Note: the searchable files provided include the index entry referencing § A101.4.6; the full wording of § A101.4.6 was not retrieved in the uploaded files.)

Table — quick decision map (where to look)

Decision question Where to apply / value to check Code reference
Which document contains mandatory energy technical rules? Title 24, Part 6 (California Energy Code) Title 24, Part 6 (see § 110.1, § 110.2, § 110.10)
Where does the CBC point to energy rules? CBC Chapter 13 and administrative cross‑references (appendix) CBC Chapter 13; § A101.4.6 (index cross‑reference)
Voluntary/extra local measures (CALGreen tiers)? CALGreen appendices (A4/A5) reference Part 6 and set voluntary/optional tiers CALGreen Appendix A4/A5 (A4.201.1; A5.201.1)
Alterations / repairs: must they follow energy rules? Energy Code has explicit rules for additions/alterations/repairs (including whole‑building compliance options) Title 24, Part 6 (see Sections 150.x, 180.x; examples: Section 180.3 repairs; whole‑building option)
Special topics to check in Part 6 Solar readiness, appliance verification, acceptance testing, lighting controls § 110.10 (solar readiness), § 110.1 (appliances), acceptance/testing sections in Part 6 (e.g., § 130.4, § 130.5, § 110.9 referenced)

2) What the CBC itself controls vs. what Part 6 controls

  • CBC (Part 2 of Title 24) establishes administrative scope and adopts the model IBC with California amendments; it identifies energy efficiency as a purpose/goal (see CBC administration/purpose language).
  • The detailed, enforceable technical energy requirements — numeric U‑factors, R‑values, lighting power allowances, HVAC efficiency, commissioning and verification — are in the California Energy Code (Title 24, Part 6) and are applied to projects under the CBC’s scope via the cross references noted in Chapter 13 and the appendices.

3) Voluntary & local options inside the CBC family

  • The CALGreen appendices (A4 residential, A5 nonresidential) provide voluntary/optional higher performance tiers (Tier 1 / Tier 2) and explicitly require submission to the California Energy Commission and the Building Standards Commission if a local jurisdiction wishes to adopt them as mandatory local code. See A4.201.1 / A5.201.1 for scope and filing requirements.

Exceptions & special cases

  • Local amendments that change energy rules must obtain California Energy Commission approval before enforcement (Title 24 Part 1 § 10‑106 is the administrative path referenced by CALGreen appendices). The CALGreen text and CBC refer to this approval requirement for local energy standards.
  • Projects that do not include lighting or mechanical systems may have limited Part 6 performance requirements; some CALGreen tiers exempt such projects from higher performance sub‑requirements (see A5.203.1.2 notes).
  • Repairs: the Energy Code provides that repairs shall not increase the preexisting energy consumption of the repaired component (see Part 6 repair rules).

Common mistakes

  • Treating the CBC (Part 2) as the place to find numeric energy values — those live in Title 24, Part 6. The CBC is the vehicle that references/organizes energy requirements (Chapter 13 and Appendix references) but does not duplicate all Part 6 tables.
  • Overlooking the voluntary CALGreen appendices: jurisdictions or projects sometimes ignore the distinction between mandatory Part 6 requirements and optional CALGreen tiers (A4/A5) that require separate filing to become mandatory locally.
  • Not checking the correct edition/version: Part 6 is updated on a cycle — always confirm you are using the edition (year) referenced by your building permit/enforcing agency. The Energy Code files included in the package show the 2025 structure and specific Part 6 sections; enforcement follows the adopted edition.
  • Missing acceptance/verification obligations: many lighting/HVAC/controls measures require certificates of installation/acceptance (Part 6 acceptance testing / certificate language). Failing to supply required certificates can invalidate a claimed compliance path.

Worked example

Scenario: New single‑family home in a subdivision of 12 houses; no PV installed at time of construction. What energy requirement applies for solar readiness?

  • The Energy Code mandates solar‑readiness provisions for covered single‑family residences in subdivisions of 10 or more homes that do not have PV installed; the minimum solar zone area for single‑family residences is 250 ft² on the roof or overhang. The specific solar‑readiness rules are in Title 24, Part 6 § 110.10(b)1(A): single‑family minimum solar zone = 250 square feet. Therefore, for this project you must provide the solar zone area and meet the access/pathway/roof‑space criteria referenced by § 110.10.

(If instead the project already installs a photovoltaic system that meets specified performance thresholds, the solar‑readiness requirement can be satisfied by that installation per the exceptions in § 110.10.)

Related provisions (CBC / Title 24 cross‑references)

  • CBC Chapter 13 — Energy Efficiency (location in CBC index) — see the CBC index entry for energy. § Chapter 13; § A101.4.6 referenced.
  • CBC administrative / purpose statements (energy conservation as a CBC purpose) — § 1.1.2 (Purpose).
  • CALGreen (California Green Building Standards Code) — Appendix A4 (residential voluntary measures) — § A4.201.1 (scope and relation to Title 24, Part 6).
  • CALGreen — Appendix A5 (nonresidential voluntary measures and tiers referencing Part 6 energy budgets) — § A5.201.1 / A5.203.1.2.
  • California Energy Code (Title 24, Part 6) — mandatory technical rules, e.g. § 110.1 (appliance verification); § 110.2 (space‑conditioning); § 110.10 (solar readiness); acceptance/testing and lighting/HVAC sections throughout Part 6.

Note on controlling appendix § A101.4.6: The CBC index and CALGreen appendices in the uploaded materials explicitly list § A101.4.6 as the CBC cross‑reference for energy efficiency (index entry: “Energy Efficiency Chapter 13, 101.4.6, 110.3.9”). However, the full text of § A101.4.6 was not included in the retrieved files available here, so the article relies on the index cross‑reference and the Part 6 text that is available.

Code references

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

  • CBC § 907.5.2.3.1 High relevance — show source text

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

    Relocated structures 101.4.7, D103.3 Rodentproofing Appendix F

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

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

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

    Relocated structures D103.3

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

    Enclosure 707.3.2, 1023.2 Fire resistance 707.3, 1019, 1023.2

    Furnace rooms 1006.2.2.1

    Group H-5 415.11.6.6 High rise 403.5, 403.6, 1025 Horizontal 707.3.5, 1026 Incinerator rooms 1006.2.2.1

  • CBC § 403.4.6 High relevance — show source text

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

    Semiconductor fabrication 415.11.11,

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

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

    Relocated structures 101.4.7, D103.3 Rodentproofing Appendix F

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

  • CBC § 2-2 Medium relevance — show source text

    ceiling and
    one clear span
    floor|2-2 × 8|5-6|2|4-3|2|3-7|2|5-2|2|4-0|2|3-4|2|4-10|2|3-9|2|3-2|2| |Roof, ceiling and
    one clear span
    floor|2-2 × 10|6-7|2|5-0|2|4-2|2|6-1|2|4-9|2|4-0|2|5-9|2|4-5|2|3-9|3| |Roof, ceiling and
    one clear span
    floor|2-2 × 12|7-9|2|5-11|2|4-11|3|7-2|2|5-7|2|4-8|3|6-9|2|5-3|3|4-5|3| |Roof, ceiling and
    one clear span
    floor|3-2 × 8|6-11|1|5-3|2|4-5|2|6-5|1|5-0|2|4-2|2|6-1|1|4-8|2|4-0|2| |Roof, ceiling and
    one clear span
    floor|3-2 × 10|8-3|2|6-3|2|5-3|2|7-8|2|5-11|2|5-0|2|7-3|2|5-7|2|4-8|2| |Roof, ceiling and
    one clear span
    floor|3-2 × 12|9-8|2|7-5|2|6-2|2|9-0|2|7-0|2|5-10|2|8-6|2|6-7|2|5-6|3| |Roof, ceiling and
    one clear span
    floor|4-2 × 8|8-0|1|6-1|1|5-1|2|7-5|1|5-9|2|4-10|2|7-0|1|5-5|2|4-7|2| |Roof, ceiling and
    one clear span
    floor|4-2 × 10|9-6|1|7-3|2|6-1|2|8-10|1|6-10|2|5-9|2|8-4|1|6-5|2|5-5|2| |Roof, ceiling and
    one clear span
    floor|4-2 × 12|11-2|2|8-6|2|7-2|2|10-5|2|8-0|2|6-9|2|9-10|2|7-7|2|6-5|2| |Roof, ceiling and
    two center-
    bearing floors|1-2 × 6|2-8|2|2-1|2|1-10|2|2-7|2|2-0|2|1-9|2|2-5|2|1-11|2|1-8|2| |Roof,

  • CBC § 101.7.1. Medium relevance — show source text

    This code does not limit the authority of city, county, or city and county governments to make necessary changes to the provisions contained in this code pursuant to Section 101.7.1. The effective date of amendments, additions or deletions to this code for cities, counties, or cities and counties filed pursuant to Section 101.7.1 shall be the date on which it is filed. However, in no case shall the amendments, additions or deletions to this code be effective any sooner than the effective date of this code.

    Local modifications shall comply with Health and Safety Code Section 18941.5(b) for Building Standards Law, Health and Safety Code Section 17958.5 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.

    101.7.1 Findings and filings.

    1. The city, county, or city and county shall make express findings for each amendment, addition or deletion based upon climatic, topographical or geological conditions. For the purpose of this section, climatic, topographical or geological conditions include local environmental conditions as established by the city, county, or city and county.

    2. The city, county, or city and county shall file the amendments, additions or deletions expressly marked and identified as to the applicable findings. Cities, counties, cities and counties, and fire departments shall file the amendments, additions or deletions and the findings with the California Building Standards Commission at 2525 Natomas Park Drive, Suite 130, Sacramento, CA 95833.

    3. Findings prepared by fire protection districts shall be ratified by the local city, county, or city and county and filed with the California Department of Housing and Community Development at 9342 Tech Center Drive, Suite 500, Sacramento, CA 95826.

    4. The city, county, or city and county shall obtain California Energy Commission approval for any energy- related ordinances consistent with Public Resources Code Section 25402.1(h)(2) and Title 24, Part 1, Section 10-106. Local governmental agencies may adopt and enforce energy standards for newly constructed buildings, additions, alterations and repairs, provided the California Energy Commission finds that the standards will require buildings to be designed to consume no more energy than permitted by Part 6. Such local standards include, but are not limited to, adopting the requirements of Part 6 before their effective date, requiring additional energy conservation measures, or setting more stringent energy budgets.

    101.8 Alternate materials, designs and methods of construction. The provisions of this code are not intended to prevent the use of any alternate material, appliance, installation, device, arrangement, method, design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternate shall be approved on a case-by-case basis where the enforcing agency finds that the proposed alternate is satisfactory and complies with the intent of the provisions of this code and is at least the equivalent of that prescribed in this code in planning and design, energy, water, material conservation and resource efficiency, environmental air quality, performance, safety and the protection of life and health. Consideration and compliance provisions for occupancies regulated by adopting state agencies are found in the sections listed below.

    1. Section 1.2.3 in the California Building Code (CBC) for the California Building Standards Commission.
    2. Section 104.2.3 in the California Building Code (CBC) for the Division of the State Architect.
  • CBC § 3.8 Medium relevance — show source text

    3.8||||X|X|||||X|X|X|X|X|X|X||||||||| |110.3.10 – 110.3.11|||X|X|X|||||X|X|X|X|X|X|X||||||||| |110.3.12 – 110.3.12.1||||X|X|||||||||||||||||||| |110.3.12.2||||X|X|||||||||||||||||||| |110.4 – 110.6|||X|||||||X|X|X|X|X|X|X||||||||| |111 – 112|||X|||||||X|X|X|X|X|X|X||||||||| |113||||||||||X|X|X|X|X|X|X||||||||| |114.1 – 114.2|||X|||||||X|X|X|X|X|X|X||||||||| |114.3||||||||||X|X|X|X|X|X|X||||||||| |115 – 116|||X|||||||X|X|X|X|X|X|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.

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    1 ADMINISTRATION

    DIVISION I CALIFORNIA ADMINISTRATION

    SECTION 1.1—GENERAL

    1.1.1 Title. These regulations shall be known as the California Building Code, may be cited as such and will be referred to herein as “this code.” The California Building Code is Part 2 of thirteen parts of the official compilation and publication of the adoption, amendment and repeal of building 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 International Building Code of the International Code Council with necessary Califor- nia 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 conservation; safety to life and property from fire and other hazards attributed to the built environment; and to provide safety to firefighters and emergency responders during emergency operations.

    1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equip- ment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.

    1.1.3.1 Nonstate-regulated buildings, structures and applications. Except as modified by local ordinance pursuant to Section 1.1.8, the following standards in the California Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 5, 6, 7, 9, 10 and 11 shall apply to all occupancies and applications not regulated by a state agency.

  • California Building Code Medium relevance — show source text

    OF EXISTING BUILDINGS . . . . . . . . . . . . . . . . .APPENDIX A-3

    CHAPTER A1 SEISMIC STRENGTHENING PROVISIONS

    FOR UNREINFORCED MASONRY BEARING WALL

    BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A101 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A102 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A103 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-4

    A104 Symbols and Notations . . . . . . . . . . . . . . . .APPENDIX A-5

    A105 General Requirements. . . . . . . . . . . . . . . . .APPENDIX A-6

    A106 Materials Requirements . . . . . . . . . . . . . . .APPENDIX A-6

    A107 Quality Control . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-8

    A108 Design Strengths. . . . . . . . . . . . . . . . . . . . . .APPENDIX A-8

    A109 Analysis and Design Procedure . . . . . . . APPENDIX A-10

    A110 General Procedure . . . . . . . . . . . . . . . . . . APPENDIX A-10

    A111 Special Procedure. . . . . . . . . . . . . . . . . . . APPENDIX A-11

    A112 Analysis and Design . . . . . . . . . . . . . . . . . APPENDIX A-14

    A113 Detailed Building System Design Requirements . . . . . . . . . . . . . . . . . . . . APPENDIX A-15

    A114 Walls of Unburned Clay, Adobe or Stone Masonry. . . . . . . . . . . . . . . . . . . . APPENDIX A-17

    CONTENTS

    CHAPTER A2 EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE AND

    REINFORCED MASONRY WALL BUILDINGS

    WITH FLEXIBLE DIAPHRAGMS. . . . . . . . . . . . APPENDIX A-21

    A201 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-21

    A202 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-21

    A203 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-21

  • CBC § 15-4 Medium relevance — show source text

    1504 Protection of Pedestrians . . . . . . . . . . . . . . . . . . . . . . 15-4

    1505 Protection of Adjoining Property . . . . . . . . . . . . . . . 15-5

    1506 Temporary Use of Streets, Alleys and Public Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6

    1507 Fire Extinguishers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6

    1508 Means of Egress. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6

    1509 Standpipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6

    1510 Automatic Sprinkler System. . . . . . . . . . . . . . . . . . . . 15-6

    1511 Accessibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-7

    1512 Water Supply for Fire Protection. . . . . . . . . . . . . . . . 15-7

    CHAPTER 16 REFERENCED STANDARDS. . . . . . . . . . . . . . 16-3

    APPENDIX A GUIDELINES FOR THE SEISMIC RETROFIT

    OF EXISTING BUILDINGS . . . . . . . . . . . . . . . . .APPENDIX A-3

    CHAPTER A1 SEISMIC STRENGTHENING PROVISIONS

    FOR UNREINFORCED MASONRY BEARING WALL

    BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A101 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A102 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-3

    A103 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-4

    A104 Symbols and Notations . . . . . . . . . . . . . . . .APPENDIX A-5

    A105 General Requirements. . . . . . . . . . . . . . . . .APPENDIX A-6

    A106 Materials Requirements . . . . . . . . . . . . . . .APPENDIX A-6

    A107 Quality Control . . . . . . . . . . . . . . . . . . . . . . .APPENDIX A-8

  • CBC § 31F-7 Medium relevance — show source text

    MARINE OIL TERMINALS

    TABLE 31F-7-8—DISTANCE BELOW GROUND TO POINT OF FIXITY Col2 Col3
    PILE EIg SOFT CLAYS LOOSE GRANULAR & MEDIUM CLAYS
    < 1010 lb in2 10 feet 8 feet
    > 1010 lb in2 12 feet 10 feet

    Assuming linear curvature distribution along the pile, the allowable curvature, φ a , can be established from:

    Equation 7-36

    φ a = ε a

    [----] c

    where:

    ε a = allowable strain limit according to Section 3107F.3.3.3 c = distance to neutral axis which can be taken as D p /2, where D p is the diameter of the pile

    The curvature is defined as:

    Equation 7-37

    φ = ----M EI

    The maximum allowable moment therefore becomes:

    Equation 7-38

    M = 2------- ε a EI D p

    The displacement capacity is therefore given by:

    Equation 7-39

    Δ = 2------------ ε a L 2

    3D p

    3107F.3.3.3 Component acceptance/damage criteria. The following limiting strain values apply for each seismic performance level for existing structures:

    TABLE 31F-7-9—LIMITING STRAIN VALUES FOR TIMBER Col2
    EARTHQUAKE LEVEL MAX. TIMBER STRAIN
    Level 1 0.002
    Level 2 0.004

    For new and alternatively, for existing structures ANSI/AWC NDS [7.11] may be used.

    Timber components for all non-seismic loading combinations shall be designed in accordance with ANSI/AWC NDS [7.11].

    3107F.3.3.4 Shear design. To account for material strength uncertainties, the maximum shear demand, V max , established from the single pile lateral analysis shall be multiplied by 1.2:

    Equation 7-40 V demand = 1.2 V max

    The factored maximum shear stress demand τ max , in a circular pile can then be determined:

    Equation 7-41

    τ max = 10 [-----] 9 [V] --------------- π [demand] r ⋅ [2]

    where:

    r = radius of pile For the seismic load combinations, the maximum allowable shear stress, τ capacity , is the design shear strength, τ design , from the ANSI/AWC NDS [7.11] multiplied by a factor of 2.8.

    Equation 7-42 τ capacity = 2.8τ design

    The shear capacity must be greater than the maximum demand.

  • CBC § 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,
  • CBC § 33-3 Medium relevance — show source text

    3302 Owner’s Responsibility for Fire Protection. . . . . . . . 33-3

    3303 Demolition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-4

    3304 Site Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-4

    3305 Sanitary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-5

    3306 Protection of Pedestrians. . . . . . . . . . . . . . . . . . . . . . . 33-5

    3307 Protection of Adjacent Property. . . . . . . . . . . . . . . . . 33-6

    3308 Temporary Use of Streets, Alleys and Public Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-6

    3309 Fire Extinguishers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-7

    3310 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-7

    3311 Standpipes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-7

    3312 Automatic Sprinkler System . . . . . . . . . . . . . . . . . . . . 33-7

    3313 Water Supply for Fire Protection . . . . . . . . . . . . . . . . 33-7

    3314 Fire Watch During Construction . . . . . . . . . . . . . . . . . 33-8

    CHAPTER 34 RESERVED. . . . . . . . . . . . . . . . . . . . . . . . . . . .34-1

    CHAPTER 35 REFERENCED STANDARDS . . . . . . . . . . . . . .35-1

    APPENDIX A EMPLOYEE QUALIFICATIONS . . . APPENDIX A-1

    A101 Building Official Qualifications . . . . . . . . . APPENDIX A-2

    A102 Referenced Standards . . . . . . . . . . . . . . . . APPENDIX A-2

    APPENDIX B BOARD OF APPEALS. . . . . . . . . . . APPENDIX B-1

    B101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX B-2

    APPENDIX C GROUP U—AGRICULTURAL

    BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX C-1

    C101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX C-2

  • CBC § 12-7 Medium relevance — show source text

    4||||||| ||CBC—2025|Y||Ch 35|Ch 80|||||| ||CEBC—2025|Y||Ch 35|Ch 80|||||| ||CFC—2025|Y||Ch 35|Ch 80|||||| ||CRC—2025|Y||Ch 35|Ch 80|||||| ||CEC—2025|Y||Ch 35|Ch 80|||||| ||NFPA 252—2022|Y||Ch 35|Ch 80|||||| ||NFPA 257—2022|Y||Ch 35|Ch 80|||||| ||SFM 12-7A-1|Y|||Ch 80|||||| ||SFM 12-7A-2|Y|||Ch 80|||||| ||SFM 12-7A-3|Y|||Ch 80|||||| ||SFM 12-7A-4|Y|||Ch 80|||||| ||SFM 12-7A-4A|Y|||Ch 80||||||

    APPENDIX H-32 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/No    		 IWUIC
    Section    		 CBC
    Section    		 CFC
    Section    		 Title 14,
    Division 1.5
    Section    		 Title 19,
    Division 1
    Section    		 Gov Code
    Section    		 PRC
    Section    		 HSC
    Section
    Section Title Title Title Title Title Title Title Title Title Title
    Chapter 7 Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards Referenced standards
    State Fire Marshal’s
    Guidelines for Fire
    Hydrant Markings
    Along State Highways
    and Freeway    		 Y
    UL 9—2009 Y
    UL 10B—2008 Y
    UL 10C—2016 Y
    UL 94—2023 Y 708A.4
    UL 263—2011 Y
    UL 723—2018 Y
    UL 790—2022 Y
    Appendix A General requirements General requirements General requirements General requirements General requirements General requirements General requirements General requirements General requirements General requirements
    A101 General N 51182(a)
    A101.1 Scope N
    A101.2 Objective N
    A102 Vegetation control N
    A102.1 General N
    A102.
  • CBC § 1705A.13.7 Medium relevance — show source text
    TABLE 1705A.13.7—REQUIRED INSPECTIONS OF STORAGE RACK SYSTEMS Col2 Col3 Col4 Col5
    TYPE CONTINUOUS
    INSPECTION    		 PERIODIC
    INSPECTION    		 REFERENCED
    STANDARD    		 IBC REFERENCE
    1. Materials used, to verify compliance with one or more of the
    material test reports in accordance with the approved
    construction documents.    		 — X — —
    2. Fabricated storage rack elements. — X — Section 1704_A_.2.5
    3. Storage rack anchorage installation. — X ANSI/MH16.1
    Section 7.3.2    		 —
    4. Completed storage rack system, to indicate compliance with
    the approved construction documents.    		 — X — —

    �

    �

    �

    �

    �

    �

    � �

    �

    �

    �

    1705 A .13.8 Seismic isolation and damping systems. Periodic special inspection shall be provided for seismic isolation and damping systems in structures assigned to Seismic Design Category D, E or F during the fabrication and installation of isolator units and energy dissipation devices. Continuous special inspection is required for prototype and production testing of isolator units and damping devices.

    1705 A .14 Testing for seismic resistance. Testing for seismic resistance shall be required as specified in Sections 1705 A .14.1 through 1705 A .14.4, unless exempted from special inspections by the exception of Section 1704 A .2.

    1705 A .14.1 Structural steel. Nondestructive testing for seismic resistance shall be in accordance with Section 1705 A .14.1.1 or 1705 A .14.1.2, as applicable.

    1705 A .14.1.1 Seismic force-resisting systems. Nondestructive testing of structural steel in the seismic force-resisting systems in buildings and structures assigned to Seismic Design Category D, E or F shall be performed in accordance with the quality assurance requirements of AISC 341 and this code.

    [DSA-SS, DSA-SS/CC] Quality assurance application is not permitted for the following AISC 341, Chapter J Section: 1. J7 (Welding Inspection and Nondestructive Testing).

    Additionally, the applicable portions in Table 1705A.2.1 of the California Building Code shall apply.

    1705 A .14.1.2 Structural steel elements. Nondestructive testing of structural steel elements in the seismic force-resisting systems of buildings and structures assigned to Seismic Design Category D, E or F other than those covered in Section 1705 A .14.1.1, including struts, collectors, chords and foundation elements, shall be performed in accordance with the quality assurance requirements of AISC 341 and this code.

    [DSA-SS, DSA-SS/CC] Quality assurance application is not permitted for the following AISC 341, Chapter J Section: 1. J7 (Welding Inspection and Nondestructive Testing).

  • CBC § 201.1 Medium 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

  • CBC § 106.11 Medium relevance — show source text

    Cool roof with Exceptions,_
    Solar reflectance, Thermal emittance, Solar reflectance
    index alternative, Verification of compliance|A5.106.11,
    A5.106.11.2,
    A5.106.11.2.1,
    A5.106.11.2.2,
    A5.106.11.2.3,
    A5.106.11.2.4||||| |(continued)
    DIVISION 5.1
    Planning and Design
    Select Three Electives|Select Three Electives|Elective|Reduction of heat island effect, Shade trees|A5.106.11,
    A5.106.11.3||||| |(continued)
    DIVISION 5.1
    Planning and Design
    Select Three Electives|Select Three Electives|Elective|Bird-friendly building design, Required elevation treatment,
    Special conditions, Nighttime conditions with Exception,
    Systems or operation and maintenance manual|A5.107, A5.107.1,
    A5.107.2, A5.107.3,
    A5.107.3.1||||| |DIVISION 5.2
    Energy
    Efficiency
    (continued)|DIVISION 5.2
    Energy
    Efficiency
    (continued)|Mandatory|Meet the minimum energy efficiency standard|5.201.1||||| |DIVISION 5.2
    Energy
    Efficiency
    (continued)|DIVISION 5.2
    Energy
    Efficiency
    (continued)|Tier 2
    Prerequisite|Energy Performance—outdoor lighting power 90% of Part 6|A5.203.1.1.1||||| |DIVISION 5.2
    Energy
    Efficiency
    (continued)|DIVISION 5.2
    Energy
    Efficiency
    (continued)|Tier 2
    Prerequisite|If applicable, service for water heating in restaurants of 8,000
    sf or greater|A5.203.1.1.2|||||

    APPENDIX A5-56 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    APPENDIX A5 — NONRESIDENTIAL VOLUNTARY MEASURES

    CHAPTER 5
    DIVISIONS    		 Col2 Col3 SECTION TITLE CODE
    SECTION    		 Y N O PLAN SHEET,
    SPEC OR
    ATTACH
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Tier 2
    Prerequisite    		 Energy budget 90% or 85% of Part 6 calculated value of
    allowance    		 _A5.203.1.2.
  • CBC § 203.1.1.1 Medium relevance — show source text

    2**
    Energy
    Efficiency
    (continued)|Tier 2
    Prerequisite|Energy Performance—outdoor lighting power 90% of Part 6|A5.203.1.1.1||||| |DIVISION 5.2
    Energy
    Efficiency
    (continued)|DIVISION 5.2
    Energy
    Efficiency
    (continued)|Tier 2
    Prerequisite|If applicable, service for water heating in restaurants of 8,000
    sf or greater|A5.203.1.1.2|||||

    APPENDIX A5-56 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    APPENDIX A5 — NONRESIDENTIAL VOLUNTARY MEASURES

    CHAPTER 5
    DIVISIONS    		 Col2 Col3 SECTION TITLE CODE
    SECTION    		 Y N O PLAN SHEET,
    SPEC OR
    ATTACH
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Tier 2
    Prerequisite    		 Energy budget 90% or 85% of Part 6 calculated value of
    allowance    		 A5.203.1.2.2
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Elective On-site renewable energy (with documentation) A5.211.1,
    A5.211.1.1
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Elective Green power A5.211.3
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Elective Elevators with car lights and fan A5.212.1.1,
    A5.212.1.1.1
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Elective Escalators A5.212.1.2
    (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 (continued)
    DIVISION 5.2
    Energy
    Efficiency    		 Elective Controls that reduce energy _A5.212.1.
  • CBC § 207.1.1 Medium relevance — show source text

    **
    A6.207.1.1 Efficiency.
    A6.207.1.2 Controls for heat pumps with supplementary electric resistance heaters.
    A6.207.1.3 Thermostats.
    A6.207.1.4 Gas-and oil-fired furnace standby loss controls.||



    |



    || |A6.207.2 Space conditioning systems.
    A6.207.2.1 Supply air temperature reset controls.
    A6.207.2.2 Electric resistance heating.
    A6.207.2.3 Heat rejection systems.
    A6.207.2.4 Hydronic system measures.
    A6.207.2.5 Air distribution system duct leakage sealing.
    A6.207.2.6 Variable air volume control for single zone systems.||





    |





    || |A6.207.3 Service water-heating systems and equipment.
    A6.207.3.1 Certification by manufacturers.
    A6.207.3.2 Efficiency.
    A6.207.3.3 Installation.||


    |


    || |A6.207.4 Natural gas central furnaces, cooking equipment and pool and spa heaters.
    Pilot lights prohibited.||||| |A6.207.5 Controls for space-conditioning systems.
    A6.207.5.1 Thermostatic controls for each zone.
    A6.207.5.2 Criteria for zonal thermostatic controls.
    A6.207.5.3 Heat pump controls.
    A6.207.5.4 Dampers for air supply and exhaust equipment.
    A6.207.5.5 Automatic demand shed controls.||




    |




    || |A6.207.6 Pipe insulation.||||| |SECTION A6.209 Lighting||||| |A6.209.1 Lighting control devices, ballasts and luminaires.
    A6.209.1.1 All devices: Instructions and calibration.
    A6.209.1.2 Indicator lights.
    **A6.209.1.3 Automatic time switch control devices.

  • CBC § 203.1.1.1 Medium relevance — show source text

    2**
    Energy
    Efficiency|Tier 1
    Prerequisite|Energy performance—outdoor lighting power 90% of Part 6|A5.203.1.1.1||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Tier 1
    Prerequisite|If applicable, service for water heating in restaurants of 8,000
    sf or greater|A5.203.1.1.2||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Tier 1
    Prerequisite|Energy budget 95% or 90% of Part 6 calculated value of
    allowance|A5.203.1.2.1||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|On-site renewable energy (with documentation)|A5.211.1, A5.211.1.1||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|Green power|A5.211.3||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|Elevators with car lights and fan|A5.212.1.1,
    A5.212.1.1.1||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|Escalators|A5.212.1.2||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|Controls that reduce energy|A5.212.1.4||||| |DIVISION 5.2
    Energy
    Efficiency|DIVISION 5.2
    Energy
    Efficiency|Elective|Steel framing|A5.213.1|||||

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-49

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    APPENDIX A5 — NONRESIDENTIAL VOLUNTARY MEASURES

    CHAPTER 5
    DIVISIONS    		 Col2 Col3 SECTION TITLE CODE
    SECTION    		 Y N O PLAN SHEET,
    SPEC OR
    ATTACH
    **DIVISION 5.
  • CBC § 6.4. Medium relevance — show source text
    1. Outdoor lighting controls shall be tested in accordance with Reference Nonresidential Appendix NA7.8; and
    2. Lighting systems receiving the Institutional Tuning Power Adjustment Factor shall be tested in accordance with Reference Nonresidential Appendix NA7.6.4.
    3. Demand responsive controls required to control controlled receptacles shall be tested in accordance with Reference Nonresidential Appendix NA7.6.5.

    (b) Lighting control installation certificate requirements. To be recognized for compliance with Part 6 an installation certificate shall be submitted in accordance with Section 10-103(a) for any lighting control system, energy management control system, interlocked lighting system, lighting power adjustment factor, or additional wattage available for a videoconference studio, in accordance with the following requirements, as applicable:

    1. Certification that when a lighting control system is installed to comply with lighting control requirements in Part 6 it complies with the applicable requirements of Section 110.9; and complies with Reference Nonresidential Appendix NA7.7.1.

    2. Certification that when an energy management control system is installed to function as a lighting control required by Part 6 it functionally meets all applicable requirements for each application for which it is installed, in accordance with Sections 110.9, 130.0 through 130.5, 140.6 through 150.0, and 150.2; and complies with Reference Nonresidential Appendix NA7.7.2.

    3. Reserved.

    4. Reserved.

    5. Certification that interlocked lighting systems used to serve an approved area comply with Section 140.6(a)1; and comply with Reference Nonresidential Appendix NA7.7.4.

    6. Certification that lighting controls installed to earn a lighting power adjustment factor (PAF) comply with Section 140.6(a)2; and comply with Reference Nonresidential Appendix NA7.7.5.

    2025 CALIFORNIA ENERGY CODE 101

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

    NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—MANDATORY REQUIREMENTS FOR LIGHTING SYSTEMS AND EQUIPMENT, AND ELECTRICAL POWER DISTRIBUTION SYSTEMS

    1. Certification that additional lighting wattage installed for a videoconference studio complies with Section 140.6(c)2Gvii; and complies with Reference Nonresidential Appendix NA7.7.6.

    (c) When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 130.4 shall be performed by a certified lighting controls acceptance test technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a certified lighting controls acceptance test employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved acceptance test technician certification provider. The CLCATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

    Note: Authority cited: Sections 25402, 25402.1 and 25213, 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 130.5—ELECTRICAL POWER DISTRIBUTION SYSTEMS

  • CBC § 62.1. Medium relevance — show source text

    1. Of Class 4 as defined in ASHRAE Standard 62.1.

    2. Systems expected to operate less than 20 hours per week.

    A5.203.1.2 Performance standard. Comply with one of the advanced efficiency levels indicated below.

    A5.203.1.2.1 Tier 1. Buildings complying with the first level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on building type and the type of energy systems included in the building project. If the newly constructed building or addition does not include indoor lighting or mechanical systems, then no additional performance requirements above Title 24, Part 6 are required.

    1. For nonresidential building projects that include indoor lighting or mechanical systems, but not both: No greater than 95 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
    2. For nonresidential building projects that include indoor lighting and mechanical systems: No greater than 90 percent of the Title 24, Part 6 Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.

    APPENDIX A5-14 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    APPENDIX A5 — NONRESIDENTIAL VOLUNTARY MEASURES

    1. For high-rise residential and hotel/motel building projects: No greater than 95 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.

    A5.203.1.2.2 Tier 2. Buildings complying with the second level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on building type and the type of energy systems included in the building project. If the newly constructed building or addition does not include indoor lighting or mechanical systems, then no additional performance requirements above Title 24, Part 6 are required.

    1. For nonresidential building projects that include indoor lighting or mechanical systems, but not both: No greater than 90 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
    2. For nonresidential building projects that include indoor lighting and mechanical systems: No greater than 85 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
    3. For high-rise residential and hotel/motel building projects: No greater than 95 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.

    Note: For Energy Budget calculations, high-rise residential and hotel/motel buildings are considered nonresidential buildings.

    SECTION A5.204—MANDATORY REQUIREMENTS FOR ALTERATIONS TO EXISTING BUILDINGS

    A5.204.1 Energy efficiency . Alterations to existing nonresidential buildings shall comply with Section A5.204.1.1.

    A5.204.1.1 Altered pool and/or spa heating for existing nonresidential buildings . Alteration of existing nonresidential pool and/or spa heating system shall meet the following.

    Heating source sizing. Heating systems or equipment for pools or spas shall meet one of the sizing requirements of Items 1 through 5 below: 1.

  • CBC § 3-4 Medium relevance — show source text

    302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4

    306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

    CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3

    4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

    CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3

    5.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3 5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 5.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . 5-19 5.4 Material Conservation and Resource Efficiency . . . . 5-23 5.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

    CHAPTER 6 REFERENCED ORGANIZATIONS

    AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

    601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

    CHAPTER 7 INSTALLER AND SPECIAL

    INSPECTOR QUALIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 7-3 701 General (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3 702 Qualifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

  • CBC § 201.1 Medium relevance — show source text

    APPENDIX A5-12 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    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:

  • CBC § 106.8.2.2 Medium relevance — show source text

    Exception: Areas of parking facilities served by parking lifts, including but not limited to automated mechanicalaccess open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging.

    A4.106.8.2.2 Technical requirements. The EV spaces required by Section A4.106.8.2 shall be designed and constructed in accordance with Sections 4.106.4.2, 4.106.4.2.2.1.1, 4.106.4.2.2.1.2, and 4.106.4.2.5.

    SECTION A4.107 (RESERVED)

    SECTION A4.108 —INNOVATIVE CONCEPTS AND LOCAL ENVIRONMENTAL CONDITIONS

    A4.108.1 Innovative concepts and local environmental conditions. The provisions of this code are not intended to prevent the use of any alternate material, appliance, installation, device, arrangement, method, design or method of construction not specifically prescribed by this code. This code does not limit the authority of city, county, or city and county government to make necessary changes to the provisions contained in this code pursuant to Section 101.7.1.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-7

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

    APPENDIX A4-8 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    A4 RESIDENTIAL VOLUNTARY MEASURES

    DIVISION A4.2 – ENERGY EFFICIENCY

    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

Frequently asked questions

Where do I start when the plans examiner asks for “energy code compliance”?

Start by pulling the applicable Title 24, Part 6 (California Energy Code) for the permit year; the CBC points you to Part 6 (Chapter 13 / § A101.4.6 in the CBC index). Use the compliance software and documentation required by Part 6 and submit any required installation/acceptance certificates called for by Part 6 (see § 110.1, § 110.9 et seq.).

Is CALGreen the same as the mandatory energy code?

No. CALGreen appendices (A4/A5) provide voluntary or local‑adopted higher‑performance measures and explicitly reference Title 24, Part 6 for mandatory standards. Local adoption of CALGreen tiers requires submission/approval under the Energy Commission/Building Standards rules.

Do alterations to an existing building always have to meet new Part 6 values?

Not necessarily — Part 6 includes explicit rules for alterations, repairs and whole‑building options (for example, repairs must not increase preexisting energy consumption and the whole‑building compliance option exists). Check the specific Part 6 alteration/repair sections for the project type.

Where are solar readiness rules?

Solar readiness requirements are in Title 24, Part 6 § 110.10 (examples include single‑family minimum solar zone = 250 ft² for subdivisions ≥10 homes). The CBC references these energy rules rather than repeating them.

Who approves local changes to energy requirements?

The California Energy Commission must review/approve any local energy‑related ordinances before they are enforced; CALGreen and the CBC point to this administrative pathway (Title 24, Part 1 procedures referenced by CALGreen text).

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