Definitions and rules of construction (how terms and language are interpreted)

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

• § 25218.5 High relevance — show source text

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

  SECTION 100.1 — DEFINITIONS AND RULES OF CONSTRUCTION

  (a) Rules of Construction.

  1. Where the context requires, the singular includes the plural and the plural includes the singular.
  2. The use of “and” in a conjunctive provision means that all elements in the provision must be complied with or must exist to make the provision applicable. Where compliance with one or more elements suffices, or where existence of one or more elements makes the provision applicable, “or” (rather than “and/or”) is used.
  3. “Shall” is mandatory and “may” is permissive.

  (b) Definitions. Terms, phrases, words and their derivatives in Part 6 shall be defined as specified in Section 100.1. Terms, phrases, words and their derivatives not found in Section 100.1 shall be defined as specified in the “Definitions” chapters of Title 24, Parts 1 through 5 of the California Code of Regulations. Where terms, phrases, words and their derivatives are not defined in any of the references above, they shall be defined as specified in Webster’s Third New International Dictionary of the English Language, Unabridged (1961 edition, through the 2002 addenda), unless the context requires otherwise.

  AAMA/WDMA/CSA 101/I.S.2/A440-17 are the American Architectural Manufacturers Association/Window and Door Manufacturers Association/Canadian Standards Association document titled “North American Fenestration Standard/Specification for windows, doors, and skylights” (2017).

  ACCA is the Air Conditioning Contractors of America.

  ACCA MANUAL J is the Air Conditioning Contractors of America document titled “Manual J-Residential Load Calculation,” (ANSI/ACCA 2 Manual J – 2016).

  ACCEPTANCE REQUIREMENTS FOR CODE COMPLIANCE is a description of test procedures in the Reference Nonresidential Appendices that includes equipment and systems to be tested, functions to be tested, conditions under which the test shall be performed, the scope of the tests, results to be obtained and measurable criteria for acceptable performance.

  ACCESSIBLE is having access thereto, but which first may require removal or opening of access panels, doors or similar obstructions.

  ADDITION is any change to a building that increases conditioned floor area and conditioned volume. See also, “newly conditioned space.” Addition is also any change that increases the floor area and volume of an unconditioned building of an occupancy group or type regulated by Part 6. Addition is also any change that increases the illuminated area of an outdoor lighting application regulated by Part 6.

  ADIABATIC PAD is a material located before the heat transfer surface of an adiabatic condenser, which precools the ambient air by becoming fully wetted during precool mode operation.

  AGRICULTURAL BUILDING is a structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products. It is not a structure that is a place of human habitation, a place of employment where agricultural products are processed, treated or packaged, or a place used by the public.

  AHAM is the Association of Home Appliance Manufacturers.

• § 100.0 High relevance — show source text

  Exception 1 to Section 100.0(f): If one occupancy constitutes at least 80 percent of the conditioned floor area of the building, the entire building envelope, HVAC and water heating may be designed to comply with the provisions of Part 6 applicable to that occupancy, provided that the applicable lighting requirements in Sections 140.6 through 140.8, 150.0(k), or 160.5 and 170.2(e) are met for each occupancy and space, and mandatory measures in Sections 110.0 through 130.5, 150.0, and 160.0 through 160.9 are met for each occupancy and space.

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

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

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

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

  SECTION 100.1 — DEFINITIONS AND RULES OF CONSTRUCTION

  (a) Rules of Construction.

  1. Where the context requires, the singular includes the plural and the plural includes the singular.
  2. The use of “and” in a conjunctive provision means that all elements in the provision must be complied with or must exist to make the provision applicable. Where compliance with one or more elements suffices, or where existence of one or more elements makes the provision applicable, “or” (rather than “and/or”) is used.
  3. “Shall” is mandatory and “may” is permissive.

  (b) Definitions. Terms, phrases, words and their derivatives in Part 6 shall be defined as specified in Section 100.1. Terms, phrases, words and their derivatives not found in Section 100.1 shall be defined as specified in the “Definitions” chapters of Title 24, Parts 1 through 5 of the California Code of Regulations. Where terms, phrases, words and their derivatives are not defined in any of the references above, they shall be defined as specified in Webster’s Third New International Dictionary of the English Language, Unabridged (1961 edition, through the 2002 addenda), unless the context requires otherwise.

• § 323-9843 Medium relevance — show source text

  State Librarian [SL]

  library.ca.gov csllaw@library.ca.gov (916) 323-9843 Public Library Construction & Renovation

  2025 CALIFORNIA ENERGY CODE v

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

  HOW TO DETERMINE WHERE CHANGES HAVE BEEN MADE

  Symbols in the margins indicate where changes have been made or language has been deleted.

  This symbol indicates that a change has been made.

  • This symbol indicates deletion of language.

  vi 2025 CALIFORNIA ENERGY CODE

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

  CONTENTS

  ADMINISTRATIVE REGULATIONS . . . . . . . . . . . . . . . . . . . . . . . . 1

  CALIFORNIA CODE OF REGULATIONS TITLE 24, PART 6 . . . . . 1

  SUBCHAPTER 1 ALL OCCUPANCIES—GENERAL PROVISIONS . . .1

  100.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

  100.1 Definitions and Rules of Construction . . . . . . . . . . . . . 4

  100.2 Calculation of Energy Budgets. . . . . . . . . . . . . . . . . . . 36

  SUBCHAPTER 2 ALL OCCUPANCIES—MANDATORY

  REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND

  BUILDING COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

  110.0 Systems and Equipment—General . . . . . . . . . . . . . . . 39

  110.1 Mandatory Requirements for Appliances . . . . . . . . . 39

  110.2 Mandatory Requirements for Space-Conditioning Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

  110.3 Mandatory Requirements for Service Water-Heating Systems and Equipment . . . . . . . . . . . . . . . . . . . . . . . 52

  110.4 Mandatory Requirements for Pool and Spa Systems and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

  110.5 Natural Gas Central Furnaces, Cooking Equipment, Pool and Spa Heaters, and Fireplaces: Pilot Lights Prohibited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

  110.6 Mandatory Requirements for Fenestration Products and Exterior Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

  110.7 Mandatory Requirements to Limit Air Leakage . . . . 57

  110.8 Mandatory Requirements for Insulation, Roofing Products and Radiant Barriers. . . . . . . . . . . . . . . . . . 57

  110.9 Mandatory Requirements for Lighting Controls. . . . 59

• § 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

• § 653-5791 Medium relevance — show source text

  Option 5 > Option 4 Factory-Built Housing Option 5 > Option 5 Employee Housing

  Department of Water Resources [DWR]

  water.ca.gov DWRwebcomment@water.ca.gov

  (916) 653-5791 Plumbing for Recycled Water, Floodplain Construction

  Division of the State Architect

  dgs.ca.gov/DSA (916) 445-8100

  Access Compliance [DSA-AC] (916) 445-5827 DSAaccess@dgs.ca.gov Access for Persons with Disabilities

  Structural Safety [DSA-SS, DSA-SS/CC] Public Schools & Community Colleges, State Essential Services Buildings

  State Historical Building Safety Board [SHBSB] (916) 445-7627 shbsb@dgs.ca.gov

  Historical Building Rehabilitation, Preservation, Restoration or Relocation

  Energy Commission [CEC]

  energy.ca.gov Title24@energy.ca.gov (800) 772-3300 Building Energy Efficiency, Compliance Manual & Compliance Forms

  Office of the State Fire Marshal [SFM]

  osfm.fire.ca.gov codedevelopment@fire.ca.gov

  (916) 568-3800 Fire & Life Safety

  State Lands Commission [SLC]

  slc.ca.gov MOTEMS.Public@slc.ca.gov (510) 741-4950 Marine Oil Terminals

  State Librarian [SL]

  library.ca.gov csllaw@library.ca.gov (916) 323-9843 Public Library Construction & Renovation

  2025 CALIFORNIA ENERGY CODE v

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

  HOW TO DETERMINE WHERE CHANGES HAVE BEEN MADE

  Symbols in the margins indicate where changes have been made or language has been deleted.

  This symbol indicates that a change has been made.

  • This symbol indicates deletion of language.

  vi 2025 CALIFORNIA ENERGY CODE

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

  CONTENTS

  ADMINISTRATIVE REGULATIONS . . . . . . . . . . . . . . . . . . . . . . . . 1

  CALIFORNIA CODE OF REGULATIONS TITLE 24, PART 6 . . . . . 1

  SUBCHAPTER 1 ALL OCCUPANCIES—GENERAL PROVISIONS . . .1

  100.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

  100.1 Definitions and Rules of Construction . . . . . . . . . . . . . 4

  100.2 Calculation of Energy Budgets. . . . . . . . . . . . . . . . . . . 36

  SUBCHAPTER 2 ALL OCCUPANCIES—MANDATORY

  REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND

• § 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

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

  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)

• § 435.8.4.2 Medium relevance — show source text

  435.8.4.2 The minimum clear width of a corridor shall be as follows:

  1. Group R-2.1 occupancies shall have 60 inches (1524 mm) on floors housing nonambulatory clients and 44 inches (1118 mm) on floors housing only ambulatory clients. 2. Group R-4 occupancies shall have 44 inches (1118 mm) on floors housing clients.

  Exceptions: 1. Corridors serving an occupant load of 10 or less shall not be less than 36 inches (914 mm) in width. 2. Corridors serving ambulatory persons only and having an occupant load of 49 or less shall not be less than 36 inches (914 mm) in width.

  435.8.4.3 In a Group R-2.1 and Group R-4 occupancies having smoke barriers, cross-corridor doors in corridors 6 feet (1829 mm) or less in width shall have, as a minimum, a door 36 inches (914 mm) in width.

  435.8.5 Changes in level. In Group R-3.1 occupancies housing nonambulatory clients interior changes in level up to 0.25 inch (6 mm) may be vertical and without edge treatment. Changes in level between 0.25 inch (6 mm) and 0.5 inch (12.7 mm) shall be beveled with a slope no greater than 1 unit vertical in 2 units horizontal (50 percent slope). Changes in level greater than 0.5 inch (12.7 mm) shall be accomplished by means of a ramp.

  435.8.6 Stairways.

  435.8.6.1 Group R-2.1 and Group R-4 occupancies housing more than six nonambulatory clients above the first floor shall be provided with two vertical exit enclosures. Stairway enclosures shall be in compliance with Section 1023. Exceptions to Section 1023 shall not apply in facilities licensed as a 24-hour care facility.

  435.8.6.2 Group R-3.1 occupancies may continue to use existing stairways (except for winding and spiral stairways which are not permitted as a required means of egress) provided the stairs have a maximum rise of 8 inches (203 mm) with a minimum run of 9 inches (229 mm). The minimum stairway width may be 30 inches (762 mm).

  435.8.7 Floor separation. Group R-3.1 occupancies with non-ambulatory clients housed above the first floor shall be provided with a non-fire resistance constructed floor separation at stairs which will prevent smoke migration between floors. Such floor separation shall have equivalent construction of 0.5 inch (12.7 mm) gypsum wallboard on one side of wall framing.

• § 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

• § 1030.14.1.2 Medium relevance — show source text

  1030.14.1.2 Landings. Ramped aisles shall have landings in accordance with Sections 1012.6 through 1012.6.5. Landings for ramped aisles shall be permitted to overlap required aisles or cross aisles.

  1030.14.1.3 Edge protection. Ramped aisles shall have edge protection in accordance with Sections 1012.10 and 1012.10.1.

  Exception: In assembly spaces with fixed seating, edge protection is not required on the sides of ramped aisles where the ramped aisles provide access to the adjacent seating and aisle accessways.

  1030.14.2 Stepped aisles. Aisles with a slope exceeding one unit vertical in eight units horizontal (12.5-percent slope) shall consist of a series of risers and treads that extends across the full width of aisles and complies with Sections 1030.14.2.1 through 1030.14.2.4.

  1030.14.2.1 Treads. Tread depths shall be not less than 11 inches (279 mm) and shall have dimensional uniformity. Exception: The tolerance between adjacent treads shall not exceed [3] / 16 inch (4.8 mm).

  1030.14.2.2 Risers. Where the gradient of stepped aisles is to be the same as the gradient of adjoining seating areas, the riser height shall be not less than 4 inches (102 mm) nor more than 8 inches (203 mm) and shall be uniform within each flight.

  Exceptions:

  1. Riser height nonuniformity shall be limited to the extent necessitated by changes in the gradient of the adjoining seating area to maintain adequate sightlines. Where nonuniformities exceed [3] / 16 inch (4.8 mm) between adjacent risers, the exact location of such nonuniformities shall be indicated with a distinctive marking stripe on each tread at the nosing or leading edge adjacent to the nonuniform risers. Such stripe shall be not less than 1 inch (25 mm), and not more than 2 inches (51 mm), wide. The edge marking stripe shall be distinctively different from the contrasting marking stripe.
  2. Riser heights not exceeding 9 inches (229 mm) shall be permitted where they are necessitated by the slope of the adjacent seating areas to maintain sightlines.

  1030.14.2.2.1 Construction tolerances. The tolerance between adjacent risers on a stepped aisle that were designed to be equal height shall not exceed [3] / 16 inch (4.8 mm). Where the stepped aisle is designed in accordance with Exception 1 of Section 1030.14.2.2, the stepped aisle shall be constructed so that each riser of unequal height, determined in the direction of descent, is not more than [3] / 8 inch (9.5 mm) in height different from adjacent risers where stepped aisle treads are less than 22 inches (560 mm) in depth and [3] / 4 inch (19.1 mm) in height different from adjacent risers where stepped aisle treads are 22 inches (560 mm) or greater in depth.

  1030.14.2.3 Tread contrasting marking stripe. A contrasting marking stripe shall be provided on each tread at the nosing or leading edge such that the location of each tread is readily apparent when viewed in descent. Such stripe shall be not less than 1 inch (25 mm) and not more than 2 inches (51 mm) wide.

• California Energy Code Medium relevance — show source text

  Chapter 1 Scope and Administration.

  Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.

  Chapter 2 Definitions.

  Chapter 2 is the repository of the definitions of terms used in the body of the code. The user of the code should be familiar with and consult this chapter because the definitions are essential to the correct interpretation of the code and because the user may not be aware that a term is defined.

  Chapter 3 Building Planning.

  Chapter 3 provides guidelines for a minimum level of structural integrity, life safety, fire safety and livability for inhabitants of dwelling units regulated by this code. Chapter 3 is a compilation of the code requirements specific to the building planning sector of the design and construction process. This chapter sets forth code requirements dealing with light, ventilation, sanitation, minimum room size, ceiling height and environmental comfort. Chapter 3 establishes life-safety provisions including limitations on glazing used in hazardous areas, specifications on stairways, use of guards at elevated surfaces, window and fall protection, and rules for means of egress. Snow, wind and seismic design live and dead loads and flood-resistant construction, as well as solar energy systems are addressed in this chapter.

  Chapter 4 Foundations.

  Chapter 4 provides the requirements for the design and construction of foundation systems for buildings regulated by this code. Provisions for seismic load, flood load and frost protection are contained in this chapter. A foundation system consists of two interdependent components: the foundation structure itself and the supporting soil.

  The prescriptive provisions of this chapter provide requirements for constructing footings and walls for foundations of wood, masonry, concrete and precast concrete. In addition to a foundation’s ability to support the required design loads, this chapter addresses several other factors that can affect foundation performance. These include controlling surface water and subsurface drainage, requiring soil tests where conditions warrant and evaluating proximity to slopes and minimum depth requirements. The chapter also provides requirements to minimize adverse effects of moisture, decay and pests in basements and crawl spaces.

  Chapter 5 Floors.

  Chapter 5 provides the requirements for the design and construction of floor systems that will be capable of supporting minimum required design loads. This chapter covers four different types: wood floor framing, wood floors on the ground, cold-formed steel floor framing and concrete slabs on the ground. Allowable span tables are provided that greatly simplify the determination of joist, girder and sheathing sizes for raised floor systems of wood framing and cold-formed steel framing. This chapter also contains prescriptive requirements for wood-framed exterior decks and their attachment to the main building.

  Chapter 6 Wall Construction.

  Chapter 6 contains provisions that regulate the design and construction of walls. The wall construction covered in Chapter 6 consists of five different types: wood framed, cold-formed steel framed, masonry, concrete and structural insulated panel (SIP). The primary concern of this chapter is the structural integrity of wall construction and transfer of all imposed loads to the supporting structure. This chapter provides the requirements for the design and construction of wall systems that are capable of supporting the minimum design vertical loads (dead, live and snow loads) and lateral loads (wind or seismic loads). This chapter contains the prescriptive requirements for wall bracing and/or shear walls to resist t

• § 1229.1.1 Medium relevance — show source text

  1229.1.1 Distinct part. Beds in a general acute care hospital, or acute psychiatric hospital, classified as chemical dependency recov- ery beds shall be within a distinct part. “Distinct part” means an identifiable unit of a hospital or a freestanding facility

  12-94 2025 CALIFORNIA BUILDING CODE

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

  INTERIOR ENVIRONMENT

  accommodating beds, and related services, including, but not limited to, contiguous rooms, a wing, a floor, or a building that is approved by the California Department of Public Health for a specific purpose.

  1229.2 Application. New buildings and additions, alterations, or repairs to existing buildings shall comply with applicable provisions of the California Electrical Code, California Mechanical Code, California Plumbing Code, California Energy Code, California Fire Code (Parts 3, 4, 5, 6 and 9 of Title 24) and this section.

  Note: Refer to the applicable exceptions under Section 1224.2.

  1229.2.1 Functional program. General acute care hospitals and acute psychiatric hospitals providing chemical dependency recov- ery services as a supplemental service on their hospital license shall include a Patient Safety Risk Assessment as defined in California Administrative Code Section 7-119.

  1229.3 Definitions. The definitions provided under Section 1224.3 apply to this section except as modified below:

  BASIC SERVICES. Basic services mean those essential services required by law for licensure as a chemical dependency recovery hospital, including medical, nursing, rehabilitative, pharmaceutical, dietary and support services.

  CHEMICAL DEPENDENCY RECOVERY HOSPITAL. Chemical dependency recovery hospital means a health facility that provides 24-hour inpatient chemical dependency recovery services for persons who have a dependency on alcohol or other drugs, or both alcohol and other drugs.

  HOSPITAL. Hospital, where used in this section, means a chemical dependency recovery hospital, unless noted otherwise as a general acute care hospital or acute psychiatric hospital.

  1229.4 General construction. Chemical dependency recovery units provided in general acute care hospitals shall comply with the provi- sions under Section 1224.4, General Construction, and chemical dependency recovery units provided in acute psychiatric hospitals shall comply with the provisions under Section 1228.4, General Construction, where applicable. Chemical dependency recovery hospitals under H&SC Section 1250.3 shall comply with the following requirements:

  1229.4.1 Reserved.

  1229.4.2 Reserved.

  1229.4.3 Reserved.

  1229.4.4 Support areas for patients.

  1229.4.4.1 Examination and treatment rooms.

  1229.4.4.1.1 Examination room. Examination rooms in chemical dependency recovery units shall meet the requirements of Section 1224.4.4.1.1 as amended below: