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Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD

Section 502A

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.

ADDITIONS 502 A .1 General. Additions to any building or structure shall comply with the requirements of the California Building Code for new construction. Alterations to the existing building or structure shall be made to ensure that the existing building or structure together with the addition are not less complying with the provisions of the California Building Code than the existing building or structure was prior to the addition. An existing building together with its additions shall comply with the height and area provisions of Chapter 5 of the California Building Code .

[BS] 502 A .2 Disproportionate earthquake damage. A building assigned to Seismic Design Category D, E or F that has sustained disproportionate earthquake damage shall be subject to the requirements for buildings with substantial structural damage to vertical elements of the lateral forceresisting system.

[BS] 502 A .3 Flood hazard areas. For buildings and struc- tures in flood hazard areas established in California Building Code Section 1612A.3, any addition that constitutes substan- tial improvement of the existing structure, as defined in Chapter 2, shall comply with the flood design requirements for new construction, and all aspects of the existing structure shall be brought into compliance with the requirements for new construction for flood design.

For buildings and structures in flood hazard areas estab- lished in California Building Code Section 1612A.3, any

104 2019 CALIFORNIA EXISTING 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

PRESCRIPTIVE COMPLIANCE METHOD

502 A .6 Smoke alarms in existing portions of a build- ing. Shall comply with California Building Standards Code. 502 A .7 Carbon monoxide alarms in existing portions of a building. Shall comply with California Building Standards 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
  7. Chapter 4 — REPAIRS
  8. ▸Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD
    Overview
    1. Section 501
    2. Section 502
    3. Section 503
    4. Section 505
    5. Section 504
    6. Section 506
    7. Section 507
    8. Section 501A
    9. Section 502A
    10. Section 503A
    11. Section 504A
    12. Section 505A
    13. Section 506A
    14. Section 507A
  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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