Chapter 9 — ALTERATIONS—LEVEL 3
908 Emergency Responder Communications Enhancement System Coverage — 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) § 908 · Effective January 1, 2026 · Official source: Building Standards Commission
908.1 Emergency responder communication enhancement system coverage.¶
The existing building shall undergo an evaluation of the emergency responder communication signal strength and coverage area within the entire building in accordance with Sections 908.1.1 and 908.1.2.
Exception: Where it is determined by the fire code official that the emergency responder communication enhancement system (ERCES) is not needed.
908.1.1 Evaluation. The evaluation shall determine the current signal strength and coverage capabilities of the public safety communication systems utilized by the jurisdiction, measured at the exterior of the building.
908.1.2 Compliance. The evaluation report shall be submitted for approval by the fire code official and the frequency license holder. Where the coverage area, signal strength or DAQ does not comply with Section 510 of the California Fire Code, the existing building shall be provided with ERCES coverage. The fire code official is authorized to establish the timeframe for such installation or modification.
9-6 2025 CALIFORNIA EXISTING BUILDING CODE
CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE
CHAPTER 10 – CHANGE OF OCCUPANCY
(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 | |||||||||||||||||||||||
| Adopt only those sections that are listed below |
X | |||||||||||||||||||||||
| Chapter / Section | ||||||||||||||||||||||||
| 1006.3 Exception 3 | X | |||||||||||||||||||||||
| 1007 | † | † | ||||||||||||||||||||||
| 1007.1 | X | |||||||||||||||||||||||
| 1009.2 – 1009.4 | † | † | ||||||||||||||||||||||
| 1011.2.1 | X | |||||||||||||||||||||||
| 1011.2.2 | X | |||||||||||||||||||||||
| 1011.4 | † | † | ||||||||||||||||||||||
| 1011.5.1 | X | |||||||||||||||||||||||
| 1011.5.1 Exception 8 | † | † | ||||||||||||||||||||||
| Table 1011.5 | X | |||||||||||||||||||||||
| 1011.5.2 | X | |||||||||||||||||||||||
| 1011.5.2 Exception 2 | † | † | ||||||||||||||||||||||
| 1011.5.4 | X | |||||||||||||||||||||||
| 1011.5.5 | X | |||||||||||||||||||||||
| 1011.6.1 Exception 1 | † | † | ||||||||||||||||||||||
| 1011.7.1 Exception | † | † | ||||||||||||||||||||||
| 1011.8.2 | X |
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.
10-2 2025 CALIFORNIA EXISTING BUILDING CODE
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