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Earlier editions: 20222019

Chapter 3A — PROVISIONS FOR ALL COMPLIANCE METHODS

313A Earthquake Monitoring Instruments for Existing Buildings — 2025 California Existing Building Code

California Existing Building Code (Title 24, Part 10) · 2025 edition · updated 2026-09-25 · California

CBSC: official editions, supplements and errata

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

Cite as: 2025 California Existing Building Code (Title 24, Part 10) § 313A · Effective January 1, 2026 · Official source: Building Standards Commission

313.A.1 Earthquake recording instrumentation of existing buildings. All owners of existing structures, selected by the enforcement agency for the installation of earthquake-recording instruments, shall provide space for the installation and access to such instruments. Location of said instruments shall be determined by the enforcement agency. The enforcement agency shall make arrangements to provide, maintain and service the instruments. Data shall be the property of the enforcement agency, but copies of individual records shall be made available to the public on request and the payment of an appropriate fee.

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CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE

CHAPTER 4 – REPAIRS

(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 6 6 6 6 6 6 6 6 6
Adopt Entire Chapter X X
Adopt Entire Chapter as
amended (amended
sections listed below)
X X X X X X
Adopt only those sections
that are listed below
X X X
Chapter / Section
401.1 X X X X X
401.1.1 X X
401.1.2 X
401.2 X
401.3 X
402 X
402.2 X X
402.3 X X
403 X
404 X
405.2.1 – 405.2.5 † †
405.2.3.1 X
405.2.6 X
406 X † † † †
406.1 X
407.1 X X X X
408 X
408.1 X X X X
408.2 X X X X
408.3 † †

The state agency does not adopt sections identified with 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.

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