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Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS

Section 301A

California Existing Building Code (Title 24, Part 10) · 2019 edition · updated 2026-09-10 · California

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

ADMINISTRATION 301 A .1 General. The provisions of this chapter shall control the alteration, repair, addition, and change of occupancy of existing structures for applications listed in Sections 1.10.1

[OSHPD 1] regulated by the Office of Statewide Health Planning and Development (OSHPD).

California Energy Commission, State Fire Marshal and DSA-AC requirements for existing structures shall be enforced by the Office of Statewide Health Planning and Development (OSHPD). 301 A .2 Repairs. Repairs shall comply with the requirements of Chapter 4 A . 301 A .3 Alteration, addition or change of occupancy. The alteration, addition or change of occupancy of all existing buildings or structures shall comply with one of the methods or categories listed in Section 301 A .3.1, 301 A .3.2 or 301 A .3.3 Section 303A.3.2 applies to all methods or catego- ries. Sections 301 A .3.1 through 301 A .3.3 shall not be applied in combination with each other , except when permitted by the enforcement agency.

Exception: Subject to the approval of the enforcement agency, alterations complying with the laws in existence at the time the building or the affected portion of the building was built shall be considered in compliance with the provisions of this code. New structural members added as part of the alteration shall comply with the California Building Code . 301 A .3.1 Prescriptive compliance method. Alterations, additions and changes of occupancy complying with Chapter 5 A of this code for existing buildings or structures shall be considered in compliance with the provisions of this code. 301 A .3.2 Nonconforming buildings . Alterations, additions and changes of occupancy to existing buildings or structures designed in accordance with the Pre-1973 building code complying with Section 303A.3.1 and the applicable requirements herein shall be considered in compliance with the provisions of this code. 301 A .3.3 Performance- based method. Alterations, additions and changes of occupancy to existing buildings or structures complying with Sections 303A.3.4 and 303A.3.5 of this code shall be considered in compliance with the provisions of this 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

PROVISIONS FOR ALL COMPLIANCE METHODS

302 A .4 Existing materials and equipment. Materials and equipment already in use in a building in compliance with requirements or approvals in effect at the time of their erec- tion or installation shall be permitted to remain in use unless determined by the building official to be unsafe in accor- dance with California Building Code Section 116.

302A.4.1 Existing seismic force-resisting systems. Where the existing seismic force-resisting system is a type that can be designated ordinary or is a welded steel moment frame constructed under a permit issued prior to October 25, 1994, values of R, 0, and Cd for the existing seismic force-resisting system shall be those specified by this code for an ordinary system unless it is demonstrated that the existing system will provide performance equivalent to that of a detailed, intermediate or special system.

302 A .5 New and replacement materials and equipment. Except as otherwise required or permitted by this code, mate- rials and equipment permitted by the applicable code for new construction shall be used. Like materials shall be permitted for repairs and alterations, provided no hazard to life, health or property is created. Hazardous materials shall not be used where the code for new construction would not permit their use in building of similar occupancy, purpose, and location.

[BS] 302 A .5.1 New structural members and connec- tions. New structural members and connections shall comply with the detailing provisions of the California Building Code for new buildings of similar structure, purpose and location.

Exception: Where alternative design criteria are specifically permitted.

302 A .6 Occupancy and use. Where determining the appropriate application of the referenced sections of this code, the occupancy and use of a building shall be determined in accordance with Chapter 3 of the California Building Code .

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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
  5. Chapter 1 — SCOPE AND ADMINISTRATION
  6. ▸Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS
    Overview
    1. Section 301
    2. Section 302
    3. Section 303
    4. Section 304
    5. Section 305
    6. Section 306
    7. Section 307 — [OSHPD 1R, 2, and 5]
    8. Section 308 — [OSHPD 1R, 2 and 5]
    9. Section 309 — [OSHPD 1R]
    10. Section 313
    11. Section 314
    12. Section 315
    13. Section 316
    14. Section 317
    15. Section 318
    16. Section 319
    17. Section 320
    18. Section 321
    19. Section 322
    20. Section 323
    21. Section 302A
    22. Section 301A
    23. Section 303A
    24. Section 304A
    25. Section 305A
    26. Section 306A
    27. Section 307A
    28. Section 308A
    29. Section 309A
    30. Section 310A
  7. Chapter 4 — REPAIRS
  8. Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD
  9. Chapter 6 — CLASSIFICATION OF WORK
  10. Chapter 7 — ALTERATIONS - LEVEL 1
  11. Chapter 8 — ALTERATIONS - LEVEL 2
  12. Chapter 9 — ALTERATIONS - LEVEL 3
  13. Chapter 10 — CHANGE OF OCCUPANCY
  14. Chapter 11 — ADDITIONS
  15. Chapter 12 — HISTORIC BUILDINGS
  16. Chapter 13 — PERFORMANCE COMPLIANCE METHODS
  17. Chapter 14 — RELOCATED OR MOVED BUILDINGS
  18. Chapter 15 — CONSTRUCTION SAFEGUARDS
  19. Chapter 16 — REFERENCED STANDARDS

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