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

• CBC § 7-3 Medium relevance — show source text

  702 Building Elements and Materials . . . . . . . . . . . . . . . . . 7-3

  703 Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

  704 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

  705 Reroofing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

  706 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

  707 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

  708 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

  CHAPTER 8 ALTERATIONS—LEVEL 2 . . . . . . . . . . . . . . . . . .8-3

  801 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  802 Building Elements and Materials . . . . . . . . . . . . . . . . . 8-3

  803 Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

  804 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

  805 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

  806 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  807 Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  808 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  809 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  CHAPTER 9 ALTERATIONS—LEVEL 3 . . . . . . . . . . . . . . . . . .9-3

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

• CBC § 803.13 Medium relevance — show source text

  Interior finishes Table 803.13, 804 Live load Table 1607.1 Means of egress Corridors 1020.3

  Stairway, exit access 1019

  Travel distance 407, 1006.3, 1017.2,

  1006.2.1

  Mixed occupancies 508.3, 508.4 Occupancy exceptions 303.1.1, 303.1.2, 308.5.1, 308.5.4, 310.4.1 Plumbing fixtures Chapter 29 Risk category Table 1604.5 Standby, emergency power 2702.2 Insulation

  Concealed 720.2

  Duct insulation 720.1

  Exposed 720.3 Fiberboard 720.1, Table 1508.2, 2303.1.6.2, 2303.1.6.3 Foam plastic (see Foam Plastics) 720.1

  Loose fill 720.4, 720.6 Pipe insulation 720.1, 720.7 Reflective plastic core 2614 Roof 720.5, 1508 Sound 720, 807, 1206 Thermal 720, 807, 1508 Interior Environment Lighting 1204 Rodentproofing Appendix F Sound transmission 1206

  Space dimensions 1208 Temperature control 1203 Ventilation 409.3, 414.3, 415.9.1.7,

  1202.5

  Yards or courts 1205.2, 1205.3 Interior Finishes Chapter 8 Acoustical ceiling systems 807, 808 Application 803.13, 804.4 Atriums 404.8 Children’s play structures 424 Covered and open mall buildings 402.6

  Decorative materials 419, 802.3, 806 Floor finish 804, 805 Foam plastic insulation 2603.3, 2603.4 Foam plastic trim 806.6.1, 2604.2 Insulation 807 Light-transmitting plastics 2606 Signs 402.6.4, 2611 Site-fabricated stretch systems 803.10 Trim 806.6, 806.7 Wall and ceiling finishes 803 Wet location 1210 Intermodal Shipping Container 3114 Interpretation, Code 104.1

  Jails [see Institutional (see Group I-3)] 308.5, 408 Joint Gypsum board 2508.5 Lumber sheathing 2308.11.10 Waterproofing 1805.3.3 Joints, Fire-resistant Systems 715 Special inspection 1705.18

  Kiosks 402.6.2

  Kitchens 303.3, 306.2 Accessibility 1133A, 11B-212 Dimensions 1209 Means of egress 1016.2 Occupant load Table 1004.5 Sinks Chapter 29

  INDEX-12 2025 CALIFORNIA BUILDING CODE

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  INDEX

  Marquees 3106, H113 Construction 3106.5

• CBC § 7-48 Medium relevance — show source text

  7-48 2025 CALIFORNIA BUILDING CODE

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

  FIRE AND SMOKE PROTECTION FEATURES

  TABLE 721.1(2)—RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa, o, p—continued	Col2	Col3	Col4	Col5	Col6	Col7
  MATERIAL	ITEM NUMBER	CONSTRUCTION	MINIMUM FINISHED THICKNESS FACE-TO-FACEb (inches)	MINIMUM FINISHED THICKNESS FACE-TO-FACEb (inches)	MINIMUM FINISHED THICKNESS FACE-TO-FACEb (inches)	MINIMUM FINISHED THICKNESS FACE-TO-FACEb (inches)
  MATERIAL	ITEM NUMBER	CONSTRUCTION	4 hours	3 hours	2 hours	1 hour
  8. Solid neat wood fibered gypsum plaster	8-1.1	3/4" by 0.055-inch (No. 16 carbon sheet steel gage) cold-rolled channels, 12" on center with 2.5-pound flat metal lath applied to one face and tied with 0.049" (No. 18 B.W. gage) wire at 6" spacing. Neat gypsum plaster applied each side.	—	—	2d	—
  9. Solid wall- board partition	9-1.1	One full-length layer1/2" Type X gypsum wallboarde laminated to each side of 1" full-length V-edge gypsum coreboard with approved laminating compound. Vertical joints of face layer and coreboard staggered not less than 3".	—	—	2d	—
  10. Hollow (stud- less) gypsum wallboard partition	10-1.1	One full-length layer of5/8" Type X gypsum wallboarde attached to both sides of wood or metal top and bottom runners laminated to each side of 1" × 6" full-length gypsum coreboard ribs spaced 2" on center with approved laminating compound. Ribs centered at vertical joints of face plies and joints staggered 24" in opposing faces. Ribs shall be permitted to be recessed 6" from the top and bottom.	—	—	—	21/4 d
  10. Hollow (stud- less) gypsum wallboard partition	10-1.2	1" regular gypsum V-edge full-length backing board attached to both sides of wood or metal top and bottom runners with nails or 15/8" drywall screws at 24" on center. Minimum width of runners 15/8". Face layer of1/2" regular full-length gypsum wallboard laminated to outer faces of backing board with approved laminating compound.	—	—	45/8 d	—
  11.

• CBC § 802.3 Medium relevance — show source text

  Decorative materials 419, 802.3, 806 Floor finish 804, 805 Foam plastic insulation 2603.3, 2603.4 Foam plastic trim 806.6.1, 2604.2 Insulation 807 Light-transmitting plastics 2606 Signs 402.6.4, 2611 Site-fabricated stretch systems 803.10 Trim 806.6, 806.7 Wall and ceiling finishes 803 Wet location 1210 Intermodal Shipping Container 3114 Interpretation, Code 104.1

  Jails [see Institutional (see Group I-3)] 308.5, 408 Joint Gypsum board 2508.5 Lumber sheathing 2308.11.10 Waterproofing 1805.3.3 Joints, Fire-resistant Systems 715 Special inspection 1705.18

  Kiosks 402.6.2

  Kitchens 303.3, 306.2 Accessibility 1133A, 11B-212 Dimensions 1209 Means of egress 1016.2 Occupant load Table 1004.5 Sinks Chapter 29

  INDEX-12 2025 CALIFORNIA BUILDING CODE

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

  INDEX

  Marquees 3106, H113 Construction 3106.5

  Drainage, water 3201.4 Live load Table 1607.1, 1607.14 Prohibited location 3106.4

  Roof construction 3106.3 Masonry Chapter 21A Adhered veneer 1404.11

  Adobe 2109 Anchorage 1604.8.2 Anchored veneer 1404.7

  Architectural cast stone 2103.1

  Calculated fire resistance 722.4 Chimneys 2113 Construction 2104 Dampproofing 1805.2.2 Design, methods 2101.2, 2107, 2108, 2109

  Fire resistance, calculated 722.3.2,

  722.3.4

  Fireplaces 2111 Floor anchorage 1604.8.2 Foundation walls 1807.1.5

  Foundations, adobe 2109.2.4.5 Glass unit 2110

  Heaters 2112

  Inspection, special 1705.4 Joint reinforcement 2103.4

  Materials 603.1, 2103 Penetrations 714 Quality assurance 2105 Rodentproofing Appendix F Roof anchorage 1604.8.1 Seismic provisions 2106 Serviceability 1604.3.4 Supported by wood 2104.1.1, 2304.13 Surface bonding 2103.2.2 Veneer 1404.11, 1404.7, 2101.2.1,

  2308.10.10 Wall anchorage 1604.8.2 Waterproofing 1805.3.2 Mass Notification Systems 917 Mass Timber 508, 509, 602, 703, 718, 722 Materials

  Alternates 104.2.3

• CBC § 104.3.1 Medium relevance — show source text

  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

  Interior finish Table 803.13, 804 Luminous 403.5.5, 411.4.1, 1008.2.1, 1013.5, 1025 Mall buildings 402.8 Number, minimum 402.8.3, 403.5,

  1006

  Occupant load 402.8.2, 1004.2, 1006.3.2

  Passageway 707.3.4, 1024 Ramps, exterior 1027 Ramps, interior 1023 Refrigerated room 1006.2.2.2, 1006.2.2.3 Refuge area 407.5.3, 408.6.2, 420.6.1, 422.3.2

  Stairways, exterior 1027 Stairways, interior 1023 Stories 1004.2.3, 1006.3, 1017.3.1 Travel distance 404.9, 407.5.2, 410.5.3.2, 412.6 Underground buildings 405.7 Exit Access (see Means of Egress) 1016, 1017, 1018, 1019, 1020, 1021 Aircraft related 412.2.2, 412.4.2,

  412.7.3

  Aisles 1018 Ambulatory care facilities 422.3 Atrium 404.10, 404.11, 404.9, 1006.3.2, 1017.3.2, 1019.3 Balconies 1017.2.1, 1021 Common path 1006.2.1 Corridors 1020

  Doors 1005.7, 1006.2, 1007, 1010,

  1022.2

  Group H 415.11.3.3 Group I-2 407.4, 407.5.4 Group I-3 408.2, 408.3, 408.6.3 High rise 403.5 Higher education laboratories 428.3.5 Intervening space 1016.2 Malls 402.8

• CBC § 1.11. Medium relevance — show source text

  CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE

  CHAPTER 37 – COMBUSTIBLE FIBERS

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  Adopting Agency	BSC	BSC- CG	SFM	Col5	HCD	Col7	Col8	DSA	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
  Adopting Agency	BSC	BSC- CG	T-24	T-19*	1	2	1/AC	AC	SS	1	1R	2	3	4	5	5	5	5	5	5	5	5	5
  Adopt Entire Chapter			X
  Adopt Entire Chapter as amended (amended sections listed below)
  Adopt only those sections that are listed below
  [California Code of Regulations, Title 19, Division 1]
  Chapter / Section

  • The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA FIRE CODE 37-1

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  37-2 2025 CALIFORNIA FIRE CODE

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  37 COMBUSTIBLE FIBERS

  User notes:

  About this chapter: Chapter 37 establishes the requirements for storage and handling of combustible fibers, including animal, vegetable and synthetic fibers, whether woven into textiles, baled, packaged or loose. Operations involving combustible fibers are typically associated with salvage, paper milling, recycling, cloth manufacturing, carpet and textile mills and agricultural operations, among others. The primary hazard associated with these operations is the abundance of materials and their ready ignitability.

  SECTION 3701—GENERAL

  3701.1 Scope. The equipment, processes and operations involving combustible fibers shall comply with this chapter.

  3701.2 Applicability. Storage of combustible fibers in any quantity shall comply with this section.

  3701.3 Permits. Permits shall be required as set forth in Section 105.5.

  SECTION 3702—DEFINITIONS

• CBC § 8-5 Medium relevance — show source text

  803 Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

  804 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

  805 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

  806 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  807 Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  808 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  809 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

  CHAPTER 9 ALTERATIONS—LEVEL 3 . . . . . . . . . . . . . . . . . .9-3

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

  902 Special Use and Occupancy. . . . . . . . . . . . . . . . . . . . . . 9-3

  903 Building Elements and Materials . . . . . . . . . . . . . . . . . 9-3

  904 Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

  905 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

  906 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

  907 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

  908 Emergency Responder Communications Enhancement System Coverage. . . . . . . . . . . . . . . . 9-5

  CHAPTER 10 CHANGE OF OCCUPANCY . . . . . . . . . . . . . . .10-3

  1001 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

  1002 Special Use and Occupancy. . . . . . . . . . . . . . . . . . . . . 10-3

  1003 Building Elements and Materials . . . . . . . . . . . . . . . . 10-3

• CBC § 100.0 Medium relevance — show source text

  2025 CBC Building Code

  Converted from PDF using pymupdf4llm Source: 2025 CBC Building Code.pdf Text ratio: 100.0% Conversion date: 2025-10-05 02:52:49

  ---

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

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

  2025 California Building Code California Code of Regulations, Title 24, Volume 1 of Part 2

  COPYRIGHT  2025

  by INTERNATIONAL CODE COUNCIL, INC.

  [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

  Structural Pest Control Board [CA] pestboard.ca.gov pestboard@dca.ca.gov (800) 737-8188 Structural Pest Control Locations

  Veterinary Medical Board [CA] vmb.ca.gov vmb@dca.ca.gov (916) 515-5220 Veterinary Facilities

  Department of Food and Agriculture [AGR] cdfa.ca.gov (916) 900-5004 Rendering & Collection Centers (916) 900-5064 Meat & Poultry Packing Plants (916) 900-5008 Milk & Dairy Food Safety

  Department of Health Care Access and Information

  Office of Statewide Hospital Planning and Development

  [OSHPD 1, 1R, 2, 3, 4, 5, 6] hcai.ca.gov regsunit@hcai.ca.gov (916) 440-8300 Hospital Standards, Skilled Nursing Facility Standards & Clinic Standards

  Department of Public Health [DPH]

  cdph.ca.gov (Recreational Health) (916) 449-5661 Food Establishments, Organized Camps, Public Swimming Pools

  2025 CALIFORNIA BUILDING CODE v

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  How to Distinguish Between Model Code Language and California Amendments

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

• CBC § 709.4.2 Medium relevance — show source text

  Requirements 709.4.2, 1009.6 Signage 1009.10, 1009.11, 1009.9, 1013.4, 1143A, 11B-216, 11B-703 Two-way communication 1009.6.5, 1009.8, 1026.6 Where required 1009.2, 1009.3.3, 1009.4.2 Assembly Occupancy (Group A) 303, 1030 Accessibility Chapters 11A and 11B Alarms and detection 907.2.1

  Area 503, 506, 507, 508 Bleachers (see Bleachers) Folding and telescopic seating (see Bleachers) General 303.1 Grandstands (see Grandstands) Group-specific provisions A-1 303.2

  A-2 303.3

  A-3 303.4

  A-4 303.5

  Motion picture theater 409, 507.12 Special amusement areas 411 Stages and platforms 410 Height 503, 504, 505, 508, 510 Incidental uses 509 Interior finishes Table 803.13, 804 Live load Table 1607.1 Means of egress Aisles 1018.2, 1030.9, 1030.10,

  1030.11

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  INDEX

  Limitations on authority 113.2 Membership of board B101.3 Notice of meeting B101.5 Qualifications 113.3, B101.3.1 Boiler Room

  Exits 1006.2.2.1

  Bolts

  Anchor rods 1901.3 Bonding, Masonry 1805.2.2, 2103.2.2, 2113.3.1, 2510.7 Bottle-Filling Stations 202 Braced Wall Line 202

  Bracing 2308.10 Seismic requirements 2308.10.10.2, 2308.10.6.2, 2308.10.8 Sill anchorage 2308.10.7.3 Spacing 2308.10.1 Support 2308.10.8 Temporary 3103.5 Braced Wall Panel 202 Alternative bracing 2308.10.5.1, 2308.10.5.2

  Connections 2308.10.7 Length 2308.10.4 Location 2308.10.2

  Method 2308.10.3 Brick (see Masonry) Building Area (see Area, Building) 502.1, 503, 505, 506, 507, 508, 510 Demolition 3303

  Existing 101.4.7 Fire walls 706.1 Height (see Height, Building) 502.1, 503, 504, 505, 508, 510 Occupancy classification Chapter 3 Party walls 706.1.1 Relocatable 3113

  Replicable Appendix N Building, Existing 202 Building Department 103 Building Official Duties and powers 103, 104 Qualifications Appendix A Records 104.7

• CBC § 603.1 Medium relevance — show source text

  Design Professional in Responsible Charge) Architectural Trim 603.1, 1408.3 Area, Building Chapter 5, 506, Table 506.2 Accessory uses 508.2.3 Aircraft hangars, residential 412.4.5 Allowable area determination 506.2,

  506.3

  Basements 506.1.3 Buildings on same lot 503.1.2 Covered and open mall building 402.4.1, 402.4.1.1 Enclosed parking garage 406.6.1, 510.3 Equipment platforms 505.3.1 Frontage bonus 506.3 Incidental uses 509.3

  Limitations 503, 506 Membrane structures 3102.4

  Mezzanines 505.2.1 Mixed construction types 3102.6 Mixed occupancy 508.2.3, 508.3.2, 508.4.2

  Modifications 506, 510 Occupied roof 503.1.4 Open mall building 402.4.1 Open parking garage 406.5.4, 406.5.4.1, 406.5.5, 510.2, 510.3, 510.4, 510.7, 510.8, 510.9 Private garages and carports 406.3.1 Special provisions 510 Unlimited area 503.1.1, 503.1.3, 506.1.1, 506.2, 507 Area for Assisted Rescue, Exterior (see Exterior Area for Assisted Rescue) Area of Refuge (see Also Accessible Means of Egress) 202

  Requirements 709.4.2, 1009.6 Signage 1009.10, 1009.11, 1009.9, 1013.4, 1143A, 11B-216, 11B-703 Two-way communication 1009.6.5, 1009.8, 1026.6 Where required 1009.2, 1009.3.3, 1009.4.2 Assembly Occupancy (Group A) 303, 1030 Accessibility Chapters 11A and 11B Alarms and detection 907.2.1

  Area 503, 506, 507, 508 Bleachers (see Bleachers) Folding and telescopic seating (see Bleachers) General 303.1 Grandstands (see Grandstands) Group-specific provisions A-1 303.2

  A-2 303.3

  A-3 303.4

  A-4 303.5

  Motion picture theater 409, 507.12 Special amusement areas 411 Stages and platforms 410 Height 503, 504, 505, 508, 510 Incidental uses 509 Interior finishes Table 803.13, 804 Live load Table 1607.1 Means of egress Aisles 1018.2, 1030.9, 1030.10,

  1030.11

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  INDEX

• CBC § 3106.3 Medium relevance — show source text

  Roof construction 3106.3 Masonry Chapter 21A Adhered veneer 1404.11

  Adobe 2109 Anchorage 1604.8.2 Anchored veneer 1404.7

  Architectural cast stone 2103.1

  Calculated fire resistance 722.4 Chimneys 2113 Construction 2104 Dampproofing 1805.2.2 Design, methods 2101.2, 2107, 2108, 2109

  Fire resistance, calculated 722.3.2,

  722.3.4

  Fireplaces 2111 Floor anchorage 1604.8.2 Foundation walls 1807.1.5

  Foundations, adobe 2109.2.4.5 Glass unit 2110

  Heaters 2112

  Inspection, special 1705.4 Joint reinforcement 2103.4

  Materials 603.1, 2103 Penetrations 714 Quality assurance 2105 Rodentproofing Appendix F Roof anchorage 1604.8.1 Seismic provisions 2106 Serviceability 1604.3.4 Supported by wood 2104.1.1, 2304.13 Surface bonding 2103.2.2 Veneer 1404.11, 1404.7, 2101.2.1,

  2308.10.10 Wall anchorage 1604.8.2 Waterproofing 1805.3.2 Mass Notification Systems 917 Mass Timber 508, 509, 602, 703, 718, 722 Materials

  Alternates 104.2.3

  Aluminum Chapter 20 Concrete Chapter 19, Chapter 19A Glass and glazing Chapter 24 Gypsum Chapter 25 Masonry Chapter 21, Chapter 21A Noncombustible 703.4

  Plastic Chapter 26 Steel Chapter 22, Chapter 22A Testing (see Testing) 1707 Wood Chapter 23 Materials and Construction Methods for Exterior Exposure Chapter 7A Means of Appeals 113, Appendix B Means of Egress Chapter 10, 202 Accessible 1009, 2702.2 Aircraft related 412.2.2, 412.2.5.1, 412.4.2, 412.6.1, 412.7.3 Alternating tread device 412.7.3, 1006.2.2.1, 1006.2.2.2, 1011.14 Ambulatory care facilities 422.3.1, 422.3.3 Assembly 1009.1, 1030 Atrium 404.9, 404.11, 707.3.6 Capacity 1005.3

  Laboratories

  Classification of 304.1, 307.1.1 Hazardous materials 414, 415 Higher education laboratories 304.4, 428 Incidental uses Table 509.1

  Ladders

  Boiler, incinerator and furnace

  rooms 1006.2.2.1

  Construction 1011.15, 1011.16, 1014.2, 1014.7, 1015.3, 1015.4 Emergency escape window wells 1031.5.2

• CBC § 2103.4 Medium relevance — show source text

  Reinforcement

  Masonry 2103.4 Shotcrete 1908 Religious Worship, Places of Accessibility Chapter 11B Alarms and detection 907.2.1 Balcony 1030.5 Classification 303.1.4, 303.4, 305.1.1, 305.2.1, 308.5.2 Door operations 1010.2.9 Egress 1030 Interior finishes Table 803.13, 804 Unlimited area 507.6, 507.7 Relocating, Building 101.4.7, 107.2.8, 3113 Compliance 3113.1.1 Inspection agencies 3113.4 Manufacturer’s data plate 3113.3 Supplemental information 3113.2 Repairs, Building 101.4.7, 202 Flood 1612.1

  Minor 105.2.2

  Permit required 105.1 Roof, Reroofing 1509, 1512 Residential Hotels (mail receptacles) 420.13.1 Residential Occupancy (Group R) 310 Accessibility Chapter 11A, 11B Alarm and detection 907.2.8, 907.2.9, 907.2.11, 907.2.12, 907.5.2.3.2,

  907.5.2.3.3

  Area 503, 505, 506, 508, 510 Carbon monoxide alarms 915 Cooking 420.10, 420.11 Draftstopping 708.4.3, 718.4 Group provisions Group R-1 (transient) 310.2 Group R-2 (apartment) 310.3 Group R-3 (two dwellings per building) 310.4 Group R-4 (group homes) 310.5 Electric vehicle charging 420.14 Height 503, 504, 505, 508, 510 Incidental uses 509

  Interior finishes Table 803.13, 804 Live load Table 1607.1

  Live/work units 508.5 Means of egress Aisles 1018.5

  Corridors 1020.2, 1020.3

  Doors 1010.1.1 Emergency escape and rescue 1031.2

  Exit signs 1013.1, 1013.2 Single exits 1006.3 Stairway, exit access 1019 Travel distance 1006.3.3, 1017.2,

  1006.2.1

  Mixed occupancies 508.3, 508.4 Accessory 508.2, G112.1 Live/work units 508.5 Parking, private 406.2.8, 406.3 Parking below/above 510.4, 510.7, 510.9

  Special mixed 510.2

  INDEX-16 2025 CALIFORNIA BUILDING CODE

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

  INDEX

  Means of egress 3310 Protection of pedestrians 3306 Sanitary facilities 3305 Site work 3304

• CBC § 803.1.1 Medium relevance — show source text

  Exceptions:

  1. Noncombustible interior finish materials.

  2. Materials that meet the requirements of Class A materials in accordance with Section 803.1.1 or 803.1.2 where the qualifying tests were made with the material furred out from the noncombustible backing shall be permitted to be used with furring strips.

  3. Materials that meet the requirements of Class A materials in accordance with Section 803.1.1 or 803.1.2 where the qualifying tests were made with the material suspended away from the noncombustible backing shall be permitted to be used suspended away from the building element.

  SECTION 804—INTERIOR FLOOR FINISH

  804.1 General. Interior floor finish and floor covering materials shall comply with Sections 804.2 through 804.4.2.

  Exception: In areas except Groups I-2 with detention and I-3, floor finishes and coverings of a traditional type, such as wood, vinyl, linoleum or terrazzo, and resilient floor covering materials that are not composed of fibers.

  804.2 Classification. Interior floor finish and floor covering materials required by Section 804.4.2 to be of Class I or II materials shall be classified in accordance with ASTM E648 or NFPA 253. The classification referred to herein corresponds to the classifications determined by ASTM E648 or NFPA 253 as follows: Class I, 0.45 watts/cm [2] or greater; Class II, 0.22 watts/cm [2] or greater.

  804.3 Testing and identification. Interior floor finish and floor covering materials shall be tested by an agency in accordance with ASTM E648 or NFPA 253 and identified by a hang tag or other suitable method so as to identify the manufacturer or supplier and style, and shall indicate the interior floor finish or floor covering classification in accordance with Section 804.2. Carpet-type floor coverings shall be tested as proposed for use, including underlayment. Test reports confirming the information provided in the manufacturer’s product identification shall be furnished to the building official on request.

  804.4 Interior floor finish requirements. Interior floor covering materials shall comply with Sections 804.4.1 and 804.4.2 and interior floor finish materials shall comply with Section 804.4.3 .

  804.4.1 Test requirement. In all occupancies, interior floor finish and interior floor covering materials shall comply with the requirements of the ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662. For Group I-3 occupancies and Group I-2 areas where patients are restrained, see Section 804.4.3.

  804.4.2 Minimum critical radiant flux. In all occupancies, interior floor finish and floor covering materials in enclosures for stairways and ramps, exit passageways, corridors and rooms or spaces not separated from corridors by partitions extending from the floor to the underside of the ceiling shall withstand a minimum critical radiant flux. The minimum critical radiant flux shall be not less than Class I in Groups I-2 and I-3 areas where restraint is not used and R-2.1 and not less than Class II in Groups A, B, E, H, I-4, M, R-1, R-2, R-2.2 and S . For Group I-3 areas occupied by inmates or Group I-2 areas where patients are restrained, see Section 804.4.3.

• CBC § 8-1 Medium relevance — show source text

  CHAPTER 8 INTERIOR FINISHES. . . . . . . . . . . . . . . . . . . . . .8-1

  801 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  802 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  803 Wall and Ceiling Finishes . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  804 Interior Floor Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

  805 Combustible Materials in Types I and II Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

  806 Decorative Materials and Trim . . . . . . . . . . . . . . . . . . . 8-7

  807 Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

  808 Acoustical Ceiling Systems . . . . . . . . . . . . . . . . . . . . . . 8-8

  CHAPTER 9 FIRE PROTECTION AND LIFE

  SAFETY SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  902 Fire Pump and Riser Room Size . . . . . . . . . . . . . . . . . . 9-7

  903 Automatic Sprinkler Systems . . . . . . . . . . . . . . . . . . . . 9-8

  904 Alternative Automatic Fire-Extinguishing Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17

  905 Standpipe Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20

  906 Portable Fire Extinguishers . . . . . . . . . . . . . . . . . . . . . 9-22

  907 Fire Alarm and Detection Systems . . . . . . . . . . . . . . . 9-25

  908 Emergency Alarm Systems . . . . . . . . . . . . . . . . . . . . . 9-43

  909 Smoke Control Systems . . . . . . . . . . . . . . . . . . . . . . . . 9-43

  910 Smoke and Heat Removal . . . . . . . . . . . . . . . . . . . . . . 9-51

• CBC § 1010.4.1 Medium relevance — show source text

  1010.4.1

  Power-operated 1010.3.2 Revolving 1010.3.1 Security 402.8.8, 1010.2.9, 1010.3.4 Sensor release 1010.2.11 Side swinging 1010.1.2 Smoke 710.5

  Stairways 1010.2.6 Stairways, high-rise 403.5.3 Structural testing, exterior 1709.5 Thresholds 1003.5, 1010.1.4, 1010.1.6 Vestibule 1010.1.7

  Width 1010.1.1, 1010.1.1.1 Dormitories 310.3, 310.4, 420.11.1 Accessibility Chapters 11A and 11B Cooking 420.11, 904.15 Fire alarms and smoke alarms 420.5

  Separations 420.2, 420.3 Sprinkler protection 420.4 Draftstopping 202 Attics 718.4 Floor-ceiling assemblies 718.3 Drinking Fountains 11B-211, 11B-602, 11B-602.10 Drinking Fountains and Bottle-Filling Stations 11B-211, 11B-602, 11B-602.10 Dry Cleaning Plants 415.9.3 Drying Rooms 417 Dumbwaiters 713.14 Dwelling Units 310.3, 310.4 Accessibility Chapters 11A and 11B Alarms and detection 420.5, 907.2.12, 907.2.8, 907.2.9 Area 1208.4, 1208.5 Efficiency dwelling unit 1208.5 Group R310 Live/work units (see Live/work Units) Plumbing fixtures required Chapter 29 Scoping 101.2 Separation 420.2, 420.3 Sleeping Loft Appendix P Sound transmission 1206

  Sprinkler protection 420.4, 903.2.8

  Earthquake Loads (see Seismic) 1613 Earthquake Recording Equipment Appendix L Eaves (See Combustible Projections and Cornices) Educational Occupancy (Group E)

  305 Accessibility Chapter 11B Alarms and detection 907.2.3

  Area 503, 505, 506, 507, 508 Height 503, 504, 505, 508 Incidental uses 509

  Interior finishes Table 803.13, 804 Live load Table 1607.1 Locking 1010.2.12, 1010.2.7 Means of egress Aisles 1018.2, 1018.5 Corridors 1020.2, 1020.3 Panic hardware 1010.2.8

  Stairway, exit access 1019 Travel distance 1006.2.1, 1006.3.3, 1017.2 Mixed occupancies 508.3, 508.4 Accessory 303.1.3, 508.2 Assembly 303.1.3 Child care 305.2, 308.4, 310.4.

• CBC § 7-21 Medium relevance — show source text

  713 Shaft Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

  714 Penetrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

  715 Joints and Voids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26

  716 Opening Protectives . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27

  717 Ducts and Air Transfer Openings . . . . . . . . . . . . . . . . 7-34

  718 Concealed Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40

  719 Fire-Resistance Requirements for Plaster . . . . . . . . 7-42

  720 Thermal- and Sound-Insulating Materials . . . . . . . . 7-42

  721 Prescriptive Fire Resistance. . . . . . . . . . . . . . . . . . . . . 7-43

  722 Calculated Fire Resistance. . . . . . . . . . . . . . . . . . . . . . 7-66

  CHAPTER 7A [SFM] MATERIALS AND CONSTRUCTION

  METHODS FOR EXTERIOR WILDFIRE EXPOSURE . . . . . . . 7A-1

  CHAPTER 8 INTERIOR FINISHES. . . . . . . . . . . . . . . . . . . . . .8-1

  801 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  802 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  803 Wall and Ceiling Finishes . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  804 Interior Floor Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

  805 Combustible Materials in Types I and II Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

  806 Decorative Materials and Trim . . . . . . . . . . . . . . . . . . . 8-7

  807 Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

  808 Acoustical Ceiling Systems . . . . . . . . . . . . . . . . . . . . . . 8-8

  CHAPTER 9 FIRE PROTECTION AND LIFE

• CBC § 8-5 Medium relevance — show source text

  Exception: Compliance with Item 1, 2 or 3 is not required where the materials used to create the concealed space are noncombustible.

  2025 CALIFORNIA BUILDING CODE 8-5

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

  INTERIOR FINISHES

  803.15.2 Set-out construction. Where walls and ceilings are required to be of fire-resistance-rated or noncombustible construction and walls are set out or ceilings are dropped distances greater than specified in Section 803.15.1, Class A finish materials, in accordance with Section 803.1.1 or 803.1.2, shall be used.

  Exceptions:

  1. Where interior finish materials are protected on both sides by an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.

  2. Where interior finish materials are attached to noncombustible backing or furring strips installed as specified in Section 803.15.1.1.

  3. Where the combustible void is filled with a noncombustible material.

  803.15.2.1 Hangers and assembly members. The hangers and assembly members of such dropped ceilings that are below the horizontal fire-resistance-rated floor or roof assemblies shall be of noncombustible materials. The construction of each set-out wall and horizontal fire-resistance-rated floor or roof assembly shall be of fire-resistance-rated construction as required elsewhere in this code.

  Exception: In Types III and V construction, fire-retardant-treated wood shall be permitted for use as hangers and assembly members of dropped ceilings.

  803.15.3 Heavy timber construction. Wall and ceiling finishes of all classes as permitted in this chapter that are installed directly against the wood decking or planking of heavy timber construction in Section 602.4.4.2 or 2304.11 or to wood furring strips applied directly to the wood decking or planking shall be fireblocked as specified in Section 803.15.1.1. 803.15.4 Materials. An interior wall or ceiling finish material that is not more than [1] / 4 inch (6.4 mm) thick shall be applied directly onto the wall, ceiling or structural element without the use of furring strips and shall not be suspended away from the building element to which that finish material it is applied.

  Exceptions:

  1. Noncombustible interior finish materials.

  2. Materials that meet the requirements of Class A materials in accordance with Section 803.1.1 or 803.1.2 where the qualifying tests were made with the material furred out from the noncombustible backing shall be permitted to be used with furring strips.

  3. Materials that meet the requirements of Class A materials in accordance with Section 803.1.1 or 803.1.2 where the qualifying tests were made with the material suspended away from the noncombustible backing shall be permitted to be used suspended away from the building element.

  SECTION 804—INTERIOR FLOOR FINISH

  804.1 General. Interior floor finish and floor covering materials shall comply with Sections 804.2 through 804.4.2.

  Exception: In areas except Groups I-2 with detention and I-3, floor finishes and coverings of a traditional type, such as wood, vinyl, linoleum or terrazzo, and resilient floor covering materials that are not composed of fibers.

• CBC § 1002.2 Medium relevance — show source text

  Evacuation plans 1002.2 Existing buildings 3310 Exit (see Exit) 1022, 1027 Exit access (see Exit Access) 1016, 1021 Exit discharge (see Exit Discharge) 1028 Exit enclosures 1023.2

  Exit passageway 1024 Exit signs 1013, 2702.2 Fire escapes 412.7.3 Fire safety plans 1002.2 Floor surface 804, 1003.4 Gates 1010.4

  Group I-2 407.2, 407.3, 407.4, 1019.4 Group I-3 408.2, 408.3, 408.4, 408.6, 408.8, 1019.4 Guards 1015

  Handrails 1014

  Hazardous materials 414.6.1.2, 415.11.2, 415.11.6.6 Headroom 1003.2, 1003.3 Heliports, Helistops 412.7.3 High-hazard Group H 415.11.2 High-rise 403.5, 403.6 Illumination 1008, 2702.2 Interior finish 803.13, 804 Ladders (see Ladders) Live loads Table 1607.1

  Live/work units 508.5.3 Mezzanines 505.2.2, 505.2.3, 1004.2.2,

  1009.1 Moving walk 1003.7 Number 1001.2, 1006 Occupant load 1004 Parking 406.5.7 Protruding objects 1003.3, 1005.7 Ramps 1012, 1019, 1027 Scoping 101.3, 108.2, 1001.1 Seating, fixed 1009.1, 1030 Special amusement areas 411.4 Stages 410.2.3, 410.5 Stairways 403.5, 404.6, 1005.3.1, 1011, 1019, 1023, 1027 Temporary structures 3103.4 Travel distance (see Travel Distance) 1006.2.1,

  1017

  Turnstile 1010.5

  Underground buildings 405.5.1, 405.7 Width 1005.1, 1005.2, 1005.4, 1011.2, 1012.5.1, 1020.3, 1030.6, 1030.8 Mechanical (see Air Conditioning, Heating, Refrigeration and Ventilation) 101.4.2 Access 1011.12, 1208.4 Air transfer openings 705.11, 706.11, 707.10, 708.9, 709.8, 712.1.6, 713.10, 714.1.1, 717 Chimneys (see Chimneys) Code Chapter 28 Disconnected 3303.6

• CBC § 7-4 Medium relevance — show source text

  703 Penetrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

  704 Joints and Voids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

  705 Door and Window Openings . . . . . . . . . . . . . . . . . . . . . . 7-4 706 Duct and Air Transfer Openings . . . . . . . . . . . . . . . . . . . 7-5 707 Concealed Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 708 Spray Fire-Resistant Materials and Intumescent Fire-Resistant Materials . . . . . . . . . . . . . . . . . . . . . . . . 7-5

  709 Exterior Walls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

  CHAPTER 8 INTERIOR FINISH, DECORATIVE

  MATERIALS AND FURNISHINGS . . . . . . . . . . . . . . . . . . . . .8-3

  801 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  2025 CALIFORNIA FIRE CODE xxiii

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

  CONTENTS

  802 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  803 Interior Wall and Ceiling Finish in Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 804 Interior Wall and Ceiling Trim and Interior Floor Finish in New and Existing Buildings . . . . . . . . . . . . 8-7 805 Upholstered Furniture and Mattresses in New and Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . 8-8 806 Natural Decorative Vegetation in New and Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10 807 Decorative Materials and Artificial Decorative Vegetation in New and Existing Buildings. . . . . . . 8-10 808 Furnishings Other than Upholstered Furniture and Mattresses or Decorative Materials in New and Existing Buildings. . . . . . . . . . . . . . . . . . . . 8-14

  CHAPTER 9 FIRE PROTECTION AND LIFE SAFETY

  SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

• CBC § 8-3 Medium relevance — show source text

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

  CONTENTS

  802 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

  803 Interior Wall and Ceiling Finish in Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 804 Interior Wall and Ceiling Trim and Interior Floor Finish in New and Existing Buildings . . . . . . . . . . . . 8-7 805 Upholstered Furniture and Mattresses in New and Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . 8-8 806 Natural Decorative Vegetation in New and Existing Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10 807 Decorative Materials and Artificial Decorative Vegetation in New and Existing Buildings. . . . . . . 8-10 808 Furnishings Other than Upholstered Furniture and Mattresses or Decorative Materials in New and Existing Buildings. . . . . . . . . . . . . . . . . . . . 8-14

  CHAPTER 9 FIRE PROTECTION AND LIFE SAFETY

  SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  902 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

  903 Automatic Sprinkler Systems. . . . . . . . . . . . . . . . . . . . 9-13 904 Alternative Automatic Fire-Extinguishing Systems . 9-24 905 Standpipe Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28 906 Portable Fire Extinguishers. . . . . . . . . . . . . . . . . . . . . . 9-31 907 Fire Alarm and Detection Systems . . . . . . . . . . . . . . . 9-39 908 Emergency Alarm Systems . . . . . . . . . . . . . . . . . . . . . . 9-57 909 Smoke Control Systems. . . . . . . . . . . . . . . . . . . . . . . . . 9-57 910 Smoke and Heat Removal. . . . . . . . . . . . . . . . . . . . . . . 9-66

• CBC § 5003.8.3.2 Medium relevance — show source text

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

  HAZARDOUS MATERIALS—GENERAL PROVISIONS

  TABLE 5003.8.3.2—DESIGN AND NUMBER OF CONTROL AREAS	Col2	Col3	Col4	Col5
  STORY	STORY	PERCENTAGE OF THE MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREAa	NUMBER OF CONTROL AREAS PER STORY	FIRE-RESISTANCE RATING FOR FIRE BARRIERS IN HOURSb
  Above grade plane	Higher than 9 7–9 6 5 4 3 2 1	5 5 12.5 12.5 12.5 50 75 100	1 2 2 2 2 2 3 4	2 2 2 2 2 1 1 1
  Below grade plane	1 2 Lower than 2	75 50 Not Allowed	3 2 Not Allowed	1 1 Not Allowed
  a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.	a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.	a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.	a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.	a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.

  5003.8.3.3 Number. The maximum number of control areas per floor within a building shall be in accordance with Table 5003.8.3.2. For the purposes of determining the number of control areas within a building, each portion of a building separated by one or more fire walls complying with Section 706 of the California Building Code shall be considered a separate building.

• CBC § 1020.2 Medium relevance — show source text

  Corridors 1020.2

  Doors 1010.2.13, 1010.2.11, 1010.2.9, 1010.2.7, 1010.2.12.1 Lighting 1008.2, 1008.2.4 Stairway, exterior exit 1027.2 Stairways, exit access 1019 Travel distance 1006.3, 1017.2 Sprinkler protection 903.2.6, 903.3.2 Integrated Testing (Fire Protection and Life Safety Systems) 202, 901.6.2 Interconnection Fire-extinguishing systems with cooking appliances 904.14.2 Smoke alarms 907.2.11.5, 1103.8.2 Standpipe risers 905.4.2 Interior Finish Chapter 8 Defined 202

  Interior Floor-Wall Base 804.4

  Defined 202 Interior Wall and Ceiling Finish 803, 804 Defined 202 Interior Wall and Ceiling Finish and Trim 803, 804 Intumescent Fire-Resistant Materials 708 Investigations, Fire 104.10 Irritant

  Defined 202

  Gases 5004.7.1, 5307.1

  Iso-Butane (see Liquefied Petroleum Gas)

  Jurisdiction

  Defined 202

  Kettles [see Organic Coating or Asphalt (Tar) Kettles] Key Boxes 202, 506 Maintenance 506.2

  Nonstandard fire service elevator keys 506.1.2 Required 506.1 Keys, Fire Service Elevator 604.6

  Laboratory Suite 202 Ladders 1104.16.6, 5704.2.8.15 Boiler, incinerator and furnace rooms

  1006.2.2.1

  Construction 1011.15, 1011.16, 1014.2, 1014.7, 1015.3, 1015.4 Emergency escape window wells 1031.5.2

  Group I-3 1011.15, 1011.16 Refrigeration machinery rooms 1006.2.2.2

  Ship’s ladders 1011.15 Landing Ramps 1012.6, 1012.10 Stairs and stairways 1010.1.4, 1010.1.5, 1011.6, 1025.2.4 Landscaped Roofs (see also Rooftop Gardens) 317, 504.3, 905.3.7 Dead foliage 317.2.2 Irrigation 317.2.1 Maintenance equipment 317.4 Maintenance plan 317.3 Laundry Carts 318.1 Lead-Acid Battery System, Stationary (see Battery Systems, Stationary Storage) Lead-Acid Battery System, Valve-Regulated (see Battery Systems, Stationary Storage) Leaks Compressed gases 5303.12 Cryogenic fluids 5503.9 Explosive materials 5604.10 Flammable and combustible

• CBC § 1.8.10 Medium relevance — show source text

  Division 1, Chap-_ ter 3, Subchapter 1, commencing with Section 3000.

  SECTION 1.8.10—OTHER BUILDING REGULATIONS

  1.8.10.1 Existing structures. Notwithstanding other provisions of law, the replacement, retention and extension of original materials and the use of original methods of construction for any existing building or accessory structure, or portions thereof, shall be permitted in accordance with the provisions of this code and the California Existing Building Code, as adopted by the Department of Housing and Community Development. For additional information, see California Health and Safety Code, Sections 17912, 17920.3, 17922 and 17958.8.

  1.8.10.2 Moved structures. Subject to the requirements of California Health and Safety Code Sections 17922, 17922.3 and 17958.9, local ordinances or regulations relating to a moved residential building or accessory structure thereto, shall permit the replacement, reten- tion and extension of original materials and the use of original methods of construction so long as the structure does not become or continue to be a substandard building.

  SECTION 1.9—DIVISION OF THE STATE ARCHITECT

  1.9.1 Division of the State Architect—Access Compliance.

  General. The purpose of this code is to ensure that barrier-free design is incorporated in all buildings, facilities, site work and other improvements to which this code applies in compliance with state law to ensure that these improvements are accessible to and usable by persons with disabilities. Additions, alterations and structural repairs in all buildings and facilities shall comply with these provisions for new buildings, except as otherwise provided and specified herein.

  The provisions of these regulations shall apply to any portable buildings leased or owned by a school district, and shall also apply to temporary and emergency buildings and facilities. Temporary buildings and facilities are not of permanent construction but are exten- sively used or are essential for public use for a period of time. Examples of temporary buildings or facilities covered include, but are not limited to: reviewing stands, temporary classrooms, bleacher areas, exhibit areas, temporary banking facilities, temporary health screening services or temporary safe pedestrian passageways around a construction site.

  In addition, to incorporate standards at least as restrictive as those required by the federal government for barrier-free design under (1) Title III (Public Accommodations and Commercial Facilities), Subpart D (New Construction and Alteration) (see 28 C.F.R., Part 36), and (2) Title II (Public Entities), Section 35.151 (New Construction and Alterations) (see 28 C.F.R., Part 35) both from the Americans with Disabilities Act of 1990, 2004 Americans with Disabilities Act Accessibility Guidelines, as adopted by the U.S. Department of Justice (see 36 C.F.R. Part 1191, Appendices B and D), and (3) under the Fair Housing Amendments Act of 1988. Some of these regulations may be more stringent than state law in order to meet the federal requirement.

  1.9.1.1 Application. See Government Code commencing with Section 4450.

  Publicly funded buildings, structures, sidewalks, curbs and related facilities shall be accessible to and usable by persons with disabilities as follows:

• CBC § 3.1 Medium relevance — show source text

  Exception: Construction documents for buildings constructed in accordance with the conventional light-frame construction provisions of Section 2308 shall indicate the following structural design information:

  1. Floor and roof dead and live loads.

  2. Ground snow load, p g, and allowable stress design ground snow load, p g(asd) .

  3. Basic wind speed, V, mph (m/s), and allowable stress design wind speed, V asd , as determined in accordance with Section 1609 A .3.1 and wind exposure.

  4. Seismic design category and site class.

  5. Flood design data, if located in flood hazard areas established in Section 1612 A .3.

  6. Design load-bearing values of soils.

  7. Rain load data.

  [DSA-SS] Additional requirements are included in Section 4-210 and 4-317 of the California Administrative Code (Part 1, Title 24, C.C.R).

  [OSHPD 1] Additional requirements are included in Section 7-115 and 7-125 of the California Administrative Code.

  1603 A .1.1 Floor live load. The uniformly distributed, concentrated and impact floor live load used in the design shall be indicated for floor areas. Use of live load reduction in accordance with Section 1607 A .13 shall be indicated for each type of live load used in the design.

  1603 A .1.2 Roof live load. The roof live load used in the design shall be indicated for roof areas. 1603 A .1.3 Roof snow load data. The ground snow load, p g, shall be indicated. In areas where the ground snow load, p g , exceeds 15 pounds per square foot (psf) (0.72 kN/m [2] ), the following additional information shall also be provided, regardless of whether snow loads govern the design of the roof:

  1. Flat-roof snow load, p f .
  2. Snow exposure factor, C e .
  3. Risk category.
  4. Thermal factor, C t .
  5. Slope factor(s), C s .
  6. Drift surcharge load(s), p d , where the sum of p d and p f exceeds 30 psf (1.44 kN/m [2] ) .
  7. Width of snow drift(s), w .
  8. Winter wind parameter for snow drift, W 2 .

  1603 A .1.4 Wind and tornado design data. The following information related to wind loads and, where required by Section 1609 A .5, tornado loads shall be shown, regardless of whether wind or tornado loads govern the design of the lateral force-resisting system of the structure:

  1. Basic wind speed, V, mph (m/s), tornado speed, V T, mph (m/s), and allowable stress design wind speed, V asd, mph (m/s), as determined in accordance with Section 1609 A .3.1.
• CBC § 8-6 Medium relevance — show source text

  8-6 2025 CALIFORNIA BUILDING CODE

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

  INTERIOR FINISHES

  804.4.3 Group I-2 and Group I-3 occupancy floor surfaces. Interior floor finish and floor coverings occupied by inmates or patients whose personal liberties are restrained shall be noncombustible.

  Exception: Carpet or other floor covering materials may be used in areas protected by an automatic sprinkler system installed throughout in accordance with Section 903.3.1.1. Carpet or other floor coverings shall comply with the requirements of ASTM Stan- dard E648; the minimum critical radiant flux shall be not less than Class I and the specific optical density smoke rating shall not exceed 450 per ASTM E662. Carpeting and carpet padding shall be tested as a unit in accordance with floor covering radiant panel test meeting class 1 and has a critical radiant flux limit of not less than 0.45 watt per centimeter square. The carpeting and padding shall be identified by a hang-tag or other suitable method as to manufacturer and style and shall indicate the classifica- tion of the material based on the limits set forth above.

  SECTION 805—COMBUSTIBLE MATERIALS IN TYPES I AND II CONSTRUCTION

  805.1 Application. Combustible materials installed on or embedded in floors of buildings of Type I or II construction shall comply with Sections 805.1.1 through 805.1.3.

  Exception: Stages and platforms constructed in accordance with Sections 410.2 and 410.3, respectively.

  805.1.1 Subfloor construction. Floor sleepers, bucks and nailing blocks shall not be constructed of combustible materials, unless the space between the fire-resistance-rated floor assembly and the flooring is either solidly filled with noncombustible materials or fireblocked in accordance with Section 718, and provided that such open spaces shall not extend under or through permanent partitions or walls.

  805.1.2 Wood finish flooring. Wood finish flooring is permitted to be attached directly to the embedded or fireblocked wood sleepers and shall be permitted where cemented directly to the top surface of fire-resistance-rated floor assemblies or directly to a wood subfloor attached to sleepers as provided for in Section 805.1.1. 805.1.3 Insulating boards. Combustible insulating boards not more than [1] / 2 inch (12.7 mm) thick and covered with finish flooring are permitted where attached directly to a noncombustible floor assembly or to wood subflooring attached to sleepers as provided for in Section 805.1.1.

  SECTION 806—DECORATIVE MATERIALS AND TRIM

  [F] 806.1 General. The following requirements shall apply to all occupancies:

  1. Furnishings or decorative materials of an explosive or highly flammable character shall not be used.

  2. Fire-retardant coatings in existing buildings shall be maintained so as to retain the effectiveness of the treatment under service conditions encountered in actual use.

  3. Furnishings or other objects shall not be placed to obstruct exits, access thereto, egress therefrom or visibility thereof.

  4. The permissible amount of decorative vegetation and noncombustible decorative materials shall not be limited.

• CBC § 804.3.3.3. Medium relevance — show source text

  For Group I-3 areas occupied by inmates or Group I-2 areas where patients are restrained, see Section 804.3.3.3.

  2025 CALIFORNIA FIRE CODE 8-7

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

  INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS

  804.3.3.3 Group I-2 and Group I-3 floor surfaces. Interior floor finish and floor coverings occupied by inmates or patients whose personal liberties are restrained shall be noncombustible. Carpet or other floor covering materials may be used in areas protected by an automatic sprinkler system installed throughout in accordance with Section 903.3.1.1. Carpet or other floor coverings shall comply with the requirements of ASTM Standard E648; the minimum critical radiant flux shall be not less than Class I and the specific optical density smoke rating shall not exceed 450 per ASTM E662. Carpeting and carpet padding shall be tested as a unit in accordance with floor covering radiant panel test meeting Class 1 and has a critical radiant flux limit of not less than 0.45 watt per centimeter square. The carpeting and padding shall be identified by a hang-tag or other suitable method as to manufacturer and style and shall indicate the classification of the material based on the limits set forth above.

  804.4 Interior floor-wall base. Interior floor-wall base that is 6 inches (152 mm) or less in height shall be tested in accordance with ASTM E648 or NFPA 253 and shall be not less than Class II. Where a Class I floor finish is required, the floor-wall base shall be Class I. The classification referred to herein corresponds to the classifications determined by ASTM E648 or NFPA 253 as follows: Class I, 0.45 watt/cm [2] or greater; Class II, 0.22 watts/cm [2] or greater.

  Exception: Interior trim materials that comply with Section 804.1.

  SECTION 805—UPHOLSTERED FURNITURE AND MATTRESSES IN NEW AND EXISTING BUILDINGS

  805.1 Reserved.

  805.2 Group I-2 and Group B ambulatory care facilities. The requirements in Sections 805.2.1 through 805.2.2 shall apply to Group I-2 occupancies and Group B ambulatory care facilities.

  805.2.1 Upholstered furniture. Newly introduced upholstered furniture shall meet the requirements of Sections 805.2.1.1 through 805.2.1.3.

  805.2.1.1 Ignition by cigarettes. Newly introduced upholstered furniture shall be shown to resist ignition by cigarettes as determined by tests conducted in accordance with one of the following: (a) mocked-up composites of the upholstered furniture shall have a char length not exceeding 1.5 inches (38 mm) when tested in accordance with NFPA 261 or (b) the components of the upholstered furniture shall meet the requirements for Class I when tested in accordance with NFPA 260.

  Exception: Upholstered furniture belonging to the patients in sleeping rooms of Group I-2, Condition 1 occupancies, provided that a smoke detector is installed in such rooms. Battery-powered, single-station smoke alarms shall be allowed.

• CBC § 804.3.3 Medium relevance — show source text

  804.3.3 Interior floor finish requirements. New interior floor covering materials shall comply with Sections 804.3.3.1 and 804.3.3.2, and interior floor finish materials shall comply with Section 804.3.1.

  804.3.3.1 Test requirement. In all occupancies, interior floor finish and interior floor covering materials shall comply with the requirements of ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662. For Group I-3 occupancies and Group I-2 areas where patients are restrained, see Section 804.3.3.3.

  804.3.3.2 Minimum critical radiant flux. In all occupancies, new interior floor finish and floor covering materials in enclosures for stairways and ramps, exit passageways, corridors and rooms or spaces not separated from corridors by full-height partitions extending from the floor to the underside of the ceiling shall withstand a minimum critical radiant flux. The minimum critical radiant flux shall be not less than Class I in Groups I-2 and I-3 areas where restraint is not used and R-2.1 and not less than Class II in Groups A, B, E, H, I-4, M, R-1, R-2, R-2.2 and S.

  Exception: Where a building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, Class II materials shall be permitted in any area where Class I materials are required and materials complying with ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662 are permitted in any area where Class II materials are required.

  For Group I-3 areas occupied by inmates or Group I-2 areas where patients are restrained, see Section 804.3.3.3.

  2025 CALIFORNIA FIRE CODE 8-7

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

  INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS

  804.3.3.3 Group I-2 and Group I-3 floor surfaces. Interior floor finish and floor coverings occupied by inmates or patients whose personal liberties are restrained shall be noncombustible. Carpet or other floor covering materials may be used in areas protected by an automatic sprinkler system installed throughout in accordance with Section 903.3.1.1. Carpet or other floor coverings shall comply with the requirements of ASTM Standard E648; the minimum critical radiant flux shall be not less than Class I and the specific optical density smoke rating shall not exceed 450 per ASTM E662. Carpeting and carpet padding shall be tested as a unit in accordance with floor covering radiant panel test meeting Class 1 and has a critical radiant flux limit of not less than 0.45 watt per centimeter square. The carpeting and padding shall be identified by a hang-tag or other suitable method as to manufacturer and style and shall indicate the classification of the material based on the limits set forth above.

• CBC § 804.4 Medium relevance — show source text

  804.4 Interior floor finish requirements. Interior floor covering materials shall comply with Sections 804.4.1 and 804.4.2 and interior floor finish materials shall comply with Section 804.4.3 .

  804.4.1 Test requirement. In all occupancies, interior floor finish and interior floor covering materials shall comply with the requirements of the ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662. For Group I-3 occupancies and Group I-2 areas where patients are restrained, see Section 804.4.3.

  804.4.2 Minimum critical radiant flux. In all occupancies, interior floor finish and floor covering materials in enclosures for stairways and ramps, exit passageways, corridors and rooms or spaces not separated from corridors by partitions extending from the floor to the underside of the ceiling shall withstand a minimum critical radiant flux. The minimum critical radiant flux shall be not less than Class I in Groups I-2 and I-3 areas where restraint is not used and R-2.1 and not less than Class II in Groups A, B, E, H, I-4, M, R-1, R-2, R-2.2 and S . For Group I-3 areas occupied by inmates or Group I-2 areas where patients are restrained, see Section 804.4.3.

  Exception: Where a building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, Class II materials are permitted in any area where Class I materials are required, and materials complying with ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662 are permitted in any area where Class II materials are required.

  8-6 2025 CALIFORNIA BUILDING CODE

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

  INTERIOR FINISHES

  804.4.3 Group I-2 and Group I-3 occupancy floor surfaces. Interior floor finish and floor coverings occupied by inmates or patients whose personal liberties are restrained shall be noncombustible.

  Exception: Carpet or other floor covering materials may be used in areas protected by an automatic sprinkler system installed throughout in accordance with Section 903.3.1.1. Carpet or other floor coverings shall comply with the requirements of ASTM Stan- dard E648; the minimum critical radiant flux shall be not less than Class I and the specific optical density smoke rating shall not exceed 450 per ASTM E662. Carpeting and carpet padding shall be tested as a unit in accordance with floor covering radiant panel test meeting class 1 and has a critical radiant flux limit of not less than 0.45 watt per centimeter square. The carpeting and padding shall be identified by a hang-tag or other suitable method as to manufacturer and style and shall indicate the classifica- tion of the material based on the limits set forth above.

  SECTION 805—COMBUSTIBLE MATERIALS IN TYPES I AND II CONSTRUCTION

  805.1 Application. Combustible materials installed on or embedded in floors of buildings of Type I or II construction shall comply with Sections 805.1.1 through 805.1.3.

  Exception: Stages and platforms constructed in accordance with Sections 410.2 and 410.3, respectively.

• CBC § 701.1 Medium relevance — show source text

  701.1 Scope. Level 1 alterations as described in Section 602 shall comply with the requirements of this chapter. Alterations to historic buildings and structures shall comply with Part 8, Title 24, C.C.R.

  701.2 Conformance. An existing building or portion thereof shall not be altered such that the building becomes less safe than its existing condition.

  Exception: Where the current level of safety or sanitation is proposed to be reduced, the portion altered shall conform to the requirements of the California Building Code .

  [BS] 701.3 Flood hazard areas. In flood hazard areas, alterations that constitute substantial improvement shall require that the building comply with Section 1612 of the California Building Code, or Section R306 of the California Residential Code, as applicable.

  SECTION 702—BUILDING ELEMENTS AND MATERIALS

  702.1 Interior finishes. Newly installed interior wall and ceiling finishes shall comply with Chapter 8 of the California Building Code .

  702.2 Interior floor finish. New interior floor finish, including new carpeting used as an interior floor finish material, shall comply with Section 804 of the California Building Code .

  702.3 Interior trim. Newly installed interior trim materials shall comply with Section 806 of the California Building Code .

  702.4 Window fall prevention. In Group R-2 or R-3 buildings containing dwelling units and one- and two-family dwellings and townhouses regulated by the California Residential Code, window opening control devices or other window fall prevention devices complying with ASTM F2090 shall be installed where an existing window is replaced and where all of the following apply to the replacement window:

  1. The window is operable.
  2. One of the following applies: 2.1. The window replacement includes replacement of the sash and frame. 2.2. The window replacement includes the sash only where the existing frame remains.
  3. One of the following applies: 3.1. In Group R-2 or R-3 buildings containing dwelling units, the bottom of the clear opening of the window opening is at a height less than 36 inches (915 mm) above the finished floor. 3.2. In one- and two-family dwellings and townhouses regulated by the California Residential Code, the bottom of the clear opening of the window opening is at a height less than 24 inches (610 mm) above the finished floor.
  4. The window will permit openings that will allow passage of a 4-inch-diameter (102 mm) sphere when the window is in its largest opened position.
  5. The vertical distance from the bottom of the clear opening of the window opening to the finished grade or other surface below, on the exterior of the building, is greater than 72 inches (1829 mm).

  Exception: Operable windows where the bottom of the clear opening of the window opening is located more than 75 feet (22 860 mm) above the finished grade or other surface below, on the exterior of the room, space or building, and that are provided with window fall prevention devices that comply with ASTM F2006.

  702.5 Replacement window for emergency escape and rescue openings. Where windows are required to provide emergency escape and rescue openings in Group R-2 and R-3 occupancies and one- and two-family dwellings and townhouses regulated by the California Residential Code, replacement windows shall be exempt from the requirements of Section 1031.3 of the California Building Code and Section R310.2 of the California Residential Code, provided that the replacement window meets the following conditions: 1.

• CBC § 803.1.1.1 Medium relevance — show source text

  Exception: Where the interior trim material has been tested as an interior finish in accordance with NFPA 286 and complies with the acceptance criteria in Section 803.1.1.1, it is not required to be tested for flame spread index in accordance with ASTM E84 or UL 723.

  804.3 New interior floor finish. New interior floor finish and floor covering materials in new and existing buildings shall comply with Sections 804.3.1 through 804.3.3.2.

  Exception: Floor finishes and coverings of a traditional type, such as wood, vinyl, linoleum or terrazzo, and resilient floor covering materials that are not composed of fibers.

  804.3.1 Classification. Interior floor finish and floor covering materials required by Section 804.3.3.2 to be of Class I or II materials shall be classified in accordance with ASTM E648 or NFPA 253. The classification referred to herein corresponds to the classifications determined by ASTM E648 or NFPA 253 as follows: Class I, 0.45 watts/cm [2] or greater; Class II, 0.22 watts/cm [2] or greater.

  804.3.2 Testing and identification. Interior floor finish and floor covering materials shall be tested by an approved agency in accordance with ASTM E648 or NFPA 253 and identified by a hang tag or other suitable method so as to identify the manufacturer or supplier and style, and shall indicate the interior floor finish or floor covering classification in accordance with Section 804.3.1. Carpet-type floor coverings shall be tested as proposed for use, including underlayment. Test reports confirming the information provided in the manufacturer’s product identification shall be furnished to the fire code official upon request.

  804.3.3 Interior floor finish requirements. New interior floor covering materials shall comply with Sections 804.3.3.1 and 804.3.3.2, and interior floor finish materials shall comply with Section 804.3.1.

  804.3.3.1 Test requirement. In all occupancies, interior floor finish and interior floor covering materials shall comply with the requirements of ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662. For Group I-3 occupancies and Group I-2 areas where patients are restrained, see Section 804.3.3.3.

  804.3.3.2 Minimum critical radiant flux. In all occupancies, new interior floor finish and floor covering materials in enclosures for stairways and ramps, exit passageways, corridors and rooms or spaces not separated from corridors by full-height partitions extending from the floor to the underside of the ceiling shall withstand a minimum critical radiant flux. The minimum critical radiant flux shall be not less than Class I in Groups I-2 and I-3 areas where restraint is not used and R-2.1 and not less than Class II in Groups A, B, E, H, I-4, M, R-1, R-2, R-2.2 and S.

  Exception: Where a building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, Class II materials shall be permitted in any area where Class I materials are required and materials complying with ASTM Standard E648, and having a specific optical density smoke rating not to exceed 450 per ASTM E662 are permitted in any area where Class II materials are required.

• CBC § 1404.15.1.1 Medium relevance — show source text

  Nailable Substrate 1404.15.1.1, 1404.18.1,

  1404.18.2 Nailing 2303.6, 2304, 2304.10, 2308.10.6.1 Naturally Durable Wood 2304.12 Nominal Loads 1604.2 Nominal Size (Lumber) 2301.2 Noncombustible Building Material 703.4 Noncombustible 202 Noncombustible protection for mass timber 602.4, 722.7 Nurses Stations (see Care Provider Stations) Nursing Homes

  [see Institutional (Group I-2)] 308.3, 407

  Occupancy Accessory 507.1.1, 508.2

  Ceiling height 1003.2 Child care facilities (see Day Care) Configuration 1007 Construction drawings 107.2.3 Convergence 1005.6 Covered and open mall buildings 402.8 Day care facilities 308.5, 310.4.1, 1006.2.2.4

  Distribution 1005.5

  Doors 1005.7, 1006.2, 1010, 1022.2,

  2702.2

  During construction 3303.3, 3310 Elevation change 1003.5 Elevators 403.5.2, 403.6.2, 1003.7, 1009, 3008 Emergency escape and rescue 1031 Encroachment 1005.7 Equipment platform 505.3 Escalators 1003.7

  Evacuation plans 1002.2 Existing buildings 3310 Exit (see Exit) 1022, 1027 Exit access (see Exit Access) 1016, 1021 Exit discharge (see Exit Discharge) 1028 Exit enclosures 1023.2

  Exit passageway 1024 Exit signs 1013, 2702.2 Fire escapes 412.7.3 Fire safety plans 1002.2 Floor surface 804, 1003.4 Gates 1010.4

  Group I-2 407.2, 407.3, 407.4, 1019.4 Group I-3 408.2, 408.3, 408.4, 408.6, 408.8, 1019.4 Guards 1015

  Handrails 1014

  Hazardous materials 414.6.1.2, 415.11.2, 415.11.6.6 Headroom 1003.2, 1003.3 Heliports, Helistops 412.7.3 High-hazard Group H 415.11.2 High-rise 403.5, 403.6 Illumination 1008, 2702.2 Interior finish 803.13, 804 Ladders (see Ladders) Live loads Table 1607.1

  Live/work units 508.5.3 Mezzanines 505.2.2, 505.2.3, 1004.2.2,

• CBC § 903.2.8 Medium relevance — show source text

  Where Group R-3 and R-4 occupancies are permitted in Section 903.2.8 to be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.3, the_
  requirements for a non-sprinklered building shall apply.
  o. Where patients are restrained in psychiatric treatment areas of Group I-2, finishes shall comply with the requirements of a Group I-3.|For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m2.
  NP = Not permitted_ [SFM]_
  a. Class C interior finish materials shall be permitted for wainscotting or paneling of not more than 1,000 square feet of applied surface area in the grade lobby where applied
  directly to a noncombustible base or over furring strips applied to a noncombustible base and fireblocked as required by Section 803.15.1.
  b. In other than Group I-3 occupancies in buildings less than three stories above grade plane, Class B interior finish for nonsprinklered buildings and Class C interior finish for
  sprinklered buildings shall be permitted in interior exit stairways and ramps.
  c. Requirements for rooms and enclosed spaces shall be based on spaces enclosed by partitions. Where a fire-resistance rating is required for structural elements, the enclosing
  partitions shall extend from the floor to the ceiling. Partitions that do not comply with this shall be considered to be enclosing spaces and the rooms or spaces on both sides
  shall be considered to be one room or space. In determining the applicable requirements for rooms and enclosed spaces, the specific occupancy thereof shall be the govern-
  ing factor regardless of the group classification of the building or structure.
  d. Lobby areas in Group A-1, A-2 and A-3 occupancies shall be not less than Class B materials.
  e. Class C interior finish materials shall be permitted in places of assembly with an occupant load of 300 persons or less.
  f. For places of religious worship, wood used for ornamental purposes, trusses, paneling or chancel furnishing shall be permitted.
  g. Class B material is required where the building exceeds two stories.
  h. Class C interior finish materials shall be permitted in administrative spaces.
  i. Class C interior finish materials shall be permitted in rooms with a capacity of four persons or less.
  j. Class B materials shall be permitted as wainscotting extending not more than 48 inches above the finished floor in corridors and exit access stairways and ramps.
  k. Finish materials as provided for in other sections of this code.
  l. Applies when protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
  m.Corridors in ambulatory care facilities shall be provided with Class A or B materials.
  n. Where Group R-3 and R-4 occupancies are permitted in Section 903.2.8 to be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.3, the
  requirements for a non-sprinklered building shall apply.
  o. Where patients are restrained in psychiatric treatment areas of Group I-2, finishes shall comply with the requirements of a Group I-3.|

• CBC § 903.3.1.1 Medium relevance — show source text

  Class B materials shall be permitted as wainscotting extending not more than 48 inches above the finished floor in corridors and exit access stairways and ramps.
  k. Finish materials as provided for in other sections of this code.
  l. Applies when protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
  m.Corridors in ambulatory care facilities shall be provided with Class A or B materials.
  n. Where Group R-3 and R-4 occupancies are permitted in Section 903.2.8 to be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.3, the
  requirements for a non-sprinklered building shall apply.
  o. Where patients are restrained in psychiatric treatment areas of Group I-2, finishes shall comply with the requirements of a Group I-3.|For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m2.
  NP = Not permitted_ [SFM]_
  a. Class C interior finish materials shall be permitted for wainscotting or paneling of not more than 1,000 square feet of applied surface area in the grade lobby where applied
  directly to a noncombustible base or over furring strips applied to a noncombustible base and fireblocked as required by Section 803.15.1.
  b. In other than Group I-3 occupancies in buildings less than three stories above grade plane, Class B interior finish for nonsprinklered buildings and Class C interior finish for
  sprinklered buildings shall be permitted in interior exit stairways and ramps.
  c. Requirements for rooms and enclosed spaces shall be based on spaces enclosed by partitions. Where a fire-resistance rating is required for structural elements, the enclosing
  partitions shall extend from the floor to the ceiling. Partitions that do not comply with this shall be considered to be enclosing spaces and the rooms or spaces on both sides
  shall be considered to be one room or space. In determining the applicable requirements for rooms and enclosed spaces, the specific occupancy thereof shall be the govern-
  ing factor regardless of the group classification of the building or structure.
  d. Lobby areas in Group A-1, A-2 and A-3 occupancies shall be not less than Class B materials.
  e. Class C interior finish materials shall be permitted in places of assembly with an occupant load of 300 persons or less.
  f. For places of religious worship, wood used for ornamental purposes, trusses, paneling or chancel furnishing shall be permitted.
  g. Class B material is required where the building exceeds two stories.
  h. Class C interior finish materials shall be permitted in administrative spaces.
  i. Class C interior finish materials shall be permitted in rooms with a capacity of four persons or less.
  j. Class B materials shall be permitted as wainscotting extending not more than 48 inches above the finished floor in corridors and exit access stairways and ramps.
  k. Finish materials as provided for in other sections of this code.
  l. Applies when protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
  m.Corridors in ambulatory care facilities shall be provided with Class A or B materials.
  _n.