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Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS

Section 308

California Existing Building Code (Title 24, Part 10) · 2022 edition · updated 2026-09-10 · California

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

308.1 Carbon monoxide detection. Where an addition,

alteration, change of occupancy or relocation of a building is made to Group I-1, I-2, I-4 and R occupancies and classrooms of Group E occupancies, the existing building shall be provided with carbon monoxide detection in accordance with the California Fire Code or Section R315 of the California Residential Code .

Exceptions:

  1. Work involving the exterior surfaces of buildings, such as the replacement of roofing or siding, the addition or replacement of windows or doors, or the addition of porches or decks.

  2. Installation, alteration or repairs of plumbing or mechanical systems, other than fuel-burning appliances.

  3. Work classified as Level 1 Alterations in accordance with Chapter 7.

308.2 Carbon monoxide alarms in existing portions of a

building. [HCD 1 & HCD 2] Pursuant to Health and Safety Code Section 17926, carbon monoxide detection shall be pro- vided in all existing Group R buildings, as required in Section 915 of the California Building Code or Section R315 of the California Residential Code, as applicable.

308.2.1 Carbon monoxide detection in existing Group E occupancy buildings. Where the new addition includes any of the conditions identified in the California Fire Code Sections 915.1.2 through 915.1.6, carbon monoxide detection shall be installed in accordance with Section 915 of the California Fire Code. No person shall install, market, distribute, offer for sale, or sell any carbon monoxide device in the State of California unless the device and instructions have been approved and listed by the Office of the State Fire Marshal.

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▸Contents — California Existing Building Code (Title 24, Part 10)
California Existing Building Code (Title 24, Part 10)
  1. Chapter 2 — DEFINITIONS
  2. Appendix A — GUIDELINES FOR
  3. Appendix B — SUPPLEMENTARY
  4. Appendix C — GUIDELINES FOR THE WIND
  5. Appendix D — BOARD OF
  6. Chapter 1 — SCOPE AND ADMINISTRATION
  7. ▸Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS
    Overview
    1. Section 301
    2. Section 302
    3. Section 304
    4. Section 303
    5. Section 305
    6. Section 306
    7. Section 309
    8. Section 310 — [OSHPD 1R, 2 and 5]
    9. Section 311 — [OSHPD 1R, 2 and 5]
    10. Section 307
    11. Section 308
    12. Section 312 — [OSHPD 1R]
    13. Section 313 — [SFM]
    14. Section 314 — [SFM]
    15. Section 315 — [SFM]
    16. Section 316 — [SFM]
    17. Section 317
    18. Section 319
    19. Section 318
    20. Section 320
    21. Section 321
    22. Section 322
    23. Section 323 — [DSA-SS, DSA-SS/CC]
    24. Section 301A
    25. Section 302A
    26. Section 303A
    27. Section 304A
    28. Section 305A
    29. Section 306A
    30. Section 307A — 309 A
    31. Section 310A
    32. Section 311A
    33. Section 312A
    34. Section 313A
  8. Chapter 4 — REPAIRS
  9. Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD
  10. Chapter 6 — CLASSIFICATION OF WORK
  11. Chapter 7 — ALTERATIONS—LEVEL 1
  12. Chapter 8 — ALTERATIONS—LEVEL 2
  13. Chapter 9 — ALTERATIONS—LEVEL 3
  14. Chapter 10 — CHANGE OF OCCUPANCY
  15. Chapter 11 — ADDITIONS
  16. Chapter 12 — HISTORIC BUILDINGS
  17. Chapter 13 — PERFORMANCE COMPLIANCE METHODS
  18. Chapter 14 — RELOCATED OR MOVED BUILDINGS
  19. Chapter 15 — CONSTRUCTION SAFEGUARDS
  20. Chapter 16 — REFERENCED STANDARDS

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