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Chapter 12 — INTERIOR ENVIRONMENT

California Building Code (Title 24, Part 2) · 2019 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

(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 HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting agency BSC BSC-
CG		 SFM 1 2 1/AC AC SS SS/CC 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt entire chapter X X
Adopt entire chapter
as amended
(amended sections
listed below)		 X X X X X X X X X
Adopt only those
sections that are
listed below		 X X X X X X
Chapter / Section
1202.1 X X
1202.2.1 X X
1202.3 X X
Table 1202.3 X X
1202.5 X X
1202.5.2.1 X X
1202.6 X
1203.1,Exceptions 2
& 4		 X X X X X X X X
1203.4.1.1 X
1203.4.2 X
1204.1 X X
1204.4.1 X X
1205 X
1205.6 X
1205.7 X
1205.7.1 X
1206.3,Exception X X
1206.4 X X
1207.1 X
1207.4 X
1207.5 X
1208 X
1208.2 X X X X X X
1209.1.1 X
1210.2 X X X X X X
1210-1210.6 X X
1211 X
1224 X X
1225 X
1226 X
1227 X
1228 X
1230 X
1231 X
1235 X
1236 X
1237 X
1240 X
1241 X
1242 X

(continued)

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

100735044

CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

CHAPTER 12 – INTERIOR ENVIRONMENT—continued

Adopting agency BSC BSC-
CG		 SFM HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting agency BSC BSC-
CG		 SFM 1 2 1/AC AC SS SS/CC 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt entire chapter X X
Adopt entire chapter
as amended
(amended sections
listed below)		 X X X X X X X X X
Adopt only those
sections that are
listed below		 X X X X X X
Chapter / Section
1243 X
1250 X
1251 X
1252 X
1253 X
1254 X

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.

646 2019 CALIFORNIA BUILDING CODE

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

100735044

CHAPTER 12

INTERIOR ENVIRONMENT

User note:

About this chapter: Chapter 12 provides minimum provisions for the interior of buildings—the occupied environment. Ventilation, lighting, and space heating are directly regulated in this chapter and in conjunction with the California Mechanical Code ® and the California Energy Code ® . Minimum room size and maximum room-to-room sound transmission are set for certain occupancies.

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1210.2 Design standards.

Minimum design standard shall be 9,000 cycles. (One cycle is an action on the door from the fully closed position, to the fully open position, and returned to the fully closed position.)

1210.3 Certification.

Mill certification of wire physical tests and chemical properties shall be kept on file by the spring manufacturer.

Physical cycling tests shall be performed for each exten- sion spring design and shall be certified by an approved test- ing agency acceptable to the department and reports kept on file by the spring manufacturer.

1210.4 Restraining devices.

Each extension spring shall be equipped with an approved device capable of restraining the spring or any part thereof in the event it breaks. Restraining devices shall be physically tested for each extension spring family of products in accordance with ANSI/DASMA 103- 2017 or an equivalent standard. Tests shall be certified by an approved testing agency acceptable to the department. Test reports shall be kept on file by the manufacturer responsible for the restraining device.

1210.5 Identification.

Extension springs, or door systems with extension springs, and restraining devices shall be perma- nently identified as to manufacturer and shall indicate maxi- mum recommended stretch. Both extension springs and restraining devices shall bear information stating that they have been manufactured in accordance with requirements of the California Department of Housing and Community Devel- opment.

1210.6 Installation.

Installation of extension springs, restraining devices and hardware shall be in accordance with the door manufacturer’s installation instructions. Instruc- tions shall be provided by the door manufacturer and shall specify the approved method of restraint and maximum rec- ommended stretch. Unless otherwise permitted by the door manufacturer’s installation instructions, the hardware and extension springs shall be mounted to nominal 2 by 6 framing members, conforming to the applicable provisions of Section 2303.

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▸Contents — California Building Code (Title 24, Part 2)
California Building Code (Title 24, Part 2)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix G — FLOOD-RESISTANT
  3. Appendix L — EARTHQUAKE RECORDING
  4. Appendix M — TSUNAMI-GENERATED
  5. Chapter 1 — SCOPE AND ADMINISTRATION
  6. Chapter 3 — OCCUPANCY CLASSIFICATION AND USE
  7. Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED
  8. Chapter 5 — GENERAL BUILDING HEIGHTS AND AREAS
  9. Chapter 6 — TYPES OF CONSTRUCTION
  10. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  11. Chapter 7A — MATERIALS AND CONSTRUCTION
  12. Chapter 8 — INTERIOR FINISHES
  13. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  14. Chapter 10 — MEANS OF EGRESS
  15. Chapter 11A — HOUSING ACCESSIBILITY
  16. Chapter 11B — ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMM…
  17. ▸Chapter 12 — INTERIOR ENVIRONMENT
    Overview
    1. Section 1201
    2. Section 1202
    3. Section 1203
    4. Section 1204
    5. Section 1205
    6. Section 1206
    7. Section 1207
    8. Section 1208
    9. Section 1209
    10. Section 1211 — [HCD 1]
    11. Section 1210 — [HCD 1 & HCD 2]
    12. Section 1212
    13. Section 1213
    14. Section 1214
    15. Section 1215
    16. Section 1216
    17. Section 1217
    18. Section 1218
    19. Section 1219
    20. Section 1220
    21. Section 1221
    22. Section 1222
    23. Section 1223
    24. Section 1224 — [OSHPD 1 & OSHPD 1R]
    25. Section 1225 — [OSHPD 2]
    26. Section 1226 — [OSHPD 3]
    27. Section 1227 — [OSHPD 4]
    28. Section 1228 — [OSHPD 5]
    29. Section 1229
    30. Section 1230 — [BSCC]
    31. Section 1231 — [BSCC]
    32. Section 1232
    33. Section 1233
    34. Section 1234
    35. Section 1235 — [DPH]
    36. Section 1236 — [DPH]
    37. Section 1237 — [DPH]
    38. Section 1238
    39. Section 1239
    40. Section 1240 — [AGR]
    41. Section 1241 — [AGR]
    42. Section 1242 — [AGR]
    43. Section 1243 — [AGR]
    44. Section 1244
    45. Section 1245
    46. Section 1246
    47. Section 1247
    48. Section 1248
    49. Section 1249
    50. Section 1250 — [CA]
    51. Section 1251 — [CA]
    52. Section 1252 — [CA]
    53. Section 1253 — [CA]
    54. Section 1254 — [CA]
  18. Chapter 14 — EXTERIOR WALLS
  19. Chapter 15 — ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
  20. Chapter 16 — STRUCTURAL DESIGN
  21. Chapter 16A — STRUCTURAL DESIGN
  22. Chapter 17 — SPECIAL INSPECTIONS AND TESTS
  23. Chapter 18 — SOILS AND FOUNDATIONS
  24. Chapter 19 — CONCRETE
  25. Chapter 20 — ALUMINUM
  26. Chapter 21 — MASONRY
  27. Chapter 22 — STEEL
  28. Chapter 23 — WOOD
  29. Chapter 24 — GLASS AND GLAZING
  30. Chapter 25 — GYPSUM BOARD, GYPSUM PANEL PRODUCTS AND PLASTER
  31. Chapter 26 — PLASTIC
  32. Chapter 27 — ELECTRICAL
  33. Chapter 28 — MECHANICAL SYSTEMS
  34. Chapter 30 — ELEVATORS AND CONVEYING SYSTEMS
  35. Chapter 31 — SPECIAL CONSTRUCTION
  36. Chapter 31B — PUBLIC POOLS
  37. Chapter 31C — RADIATION
  38. Chapter 31D — FOOD ESTABLISHMENTS
  39. Chapter 31F — MARINE OIL TERMINALS
  40. Chapter 32 — ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
  41. Chapter 33 — SAFEGUARDS DURING CONSTRUCTION
  42. Chapter 35 — REFERENCED STANDARDS
  43. Appendix A — EMPLOYEE QUALIFICATIONS
  44. Appendix B — BOARD OF APPEALS
  45. Appendix C — GROUP U – AGRICULTURAL BUILDINGS
  46. Appendix D — FIRE DISTRICTS
  47. Appendix F — RODENTPROOFING
  48. Appendix H — SIGNS
  49. Appendix I — PATIO COVERS
  50. Appendix J — GRADING
  51. Appendix K — GROUP R-3 AND GROUP R-3.1 OCCUPANCIES
  52. Appendix N — REPLICABLE BUILDINGS
  53. Appendix O — EMERGENCY HOUSING

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