California · city · ERRCS / BDA requirements
ERRCS and BDA requirements in Palo Alto, California
Palo Alto requires radio coverage in new buildings where the fire code official requires it and measured signal falls below the city's levels for the SVRIA 700 MHz P25 system. Existing buildings follow California Fire Code Chapter 11, and every existing system must be upgraded to cover 700 through 800 MHz at the owner's expense.
Guidance, not engineering advice. Rules on this page come from the documents listed under Sources. Confirm with Palo Alto Fire Department, Fire Prevention Bureau before you design, permit or test a system.
Who must comply
State rules apply here too. See California statewide rules.
| Rule | Effect | Citation | Source |
|---|---|---|---|
| New buildings must have approved radio coverage where the fire code official requires it and signal strength is below the levels in Section 510.4.1. Buildings that already meet the SVRIA signal levels without a system are excepted. | AHJ may require | PAFD 510.1 and Exception 4 | City of Palo Alto Fire Department, Fire Prevention Bureau |
| Existing buildings must provide coverage as required in California Fire Code Chapter 11. All existing systems must be upgraded to cover 700 through 800 MHz at the owner's expense. | Note | PAFD 510.2 | City of Palo Alto Fire Department, Fire Prevention Bureau |
| Trigger | Published value |
|---|---|
| Minimum building size | Not published; confirm with the fire marshal |
| Minimum stories | Not published; confirm with the fire marshal |
| Height trigger | Not published; confirm with the fire marshal |
| Below-grade areas | Not published; confirm with the fire marshal |
| Building types named | Not published; confirm with the fire marshal |
| Existing buildings must retrofit | Yes |
| Compliance deadline | Not published; confirm with the fire marshal |
The standard is Rev. 06/25/2020 and cites the 2019 California codes. Newer code editions may change the details.
Signal and coverage
| Requirement | Value |
|---|---|
| Minimum downlink signal | -95 dBm |
| Minimum uplink signal | -95 dBm |
| Delivered audio quality (DAQ) | 3.4 |
| Coverage, general areas | 95% of floor area |
| Coverage, critical areas | 99% of floor area |
| Critical areas named | Fire command centers, Fire pump rooms, Interior exit stairways, Exit passageways, Elevator lobbies, Standpipe cabinets, Rescue air filling stations, Sprinkler sectional valve locations, Restrooms, Other areas the fire code official requires |
| Public safety radio bands | SVRIA P25 Phase 2 700 MHz digital trunked radio system |
Inbound: at least -95 dBm in 95% of each floor from the SVRIA system. Outbound: -95 dBm received at the donor site from 95% of each floor. A 20 dB difference between interior and exterior signal is required. Only FCC-certified Class A channelized public safety BDA/DAS equipment is allowed, and the ERRCS may not be combined with other DAS. Cabling needs a 2-hour fire-resistive rating and mechanical protection.
How coverage is tested
One floor, 20 squares, a radio check in each
- 20 test areas per floorEach floor is divided into a grid of 20 roughly equal areas.IFC 2021 510.5.4
- One test spot per areaA spot near the center stands for the whole area. No extra spots after it is chosen.
- One failed area is allowedMore than one failed area fails the floor. With exactly two, the floor may be re-divided into 40 areas, and up to two non-adjacent failures are allowed.IFC 2021 510.5.4
- Critical areas count moreTypical model-code targets: 95 percent of all areas and 99 percent of critical areas such as stairs and elevator lobbies. Your fire marshal sets the numbers that apply to you.IFC 2021 510.4.1
Illustration: 19 of 20 areas pass, so this floor passes. Some fire departments use other numbers; Miami-Dade, for example, stops an acceptance test below 90 percent of general areas.
Testing
| Test | What the source says | Source |
|---|---|---|
| Acceptance test | Each floor is divided into 20 test areas; the test passes when 95% of test locations pass two-way talk-back on the SVRIA system (99% in critical areas). A third-party consultant reviews plans before the fire permit and submits the acceptance report before final inspection. All results must be validated by an approved third party independent of the designer and installer. | PAFD 510.5.3; 3rd party requirements |
| Annual test | The system must be inspected and tested every year and after structural changes, at the owner's expense. Tests include the coverage test, BDA gain check, a 1-hour battery load test and component checks, validated by an independent third party, with a report to the fire code official. | PAFD 510.6.1 |
| Five-year test | Not published in the documents we read; confirm with the fire marshal. | None found |
| Coverage assessment interval | Not published in the documents we read; confirm with the fire marshal. | None found |
Maintenance and monitoring
- Systems out of service for more than 8 hours require notification to the fire code official.
- A UPS must run the ERRCS for at least 24 hours; an emergency power-off switch is required.
- Signs: 'Radio System Installed' near the key box and 'ERRCS' on the equipment room door, per the city sign standard.
Permit and inspection process
- Register the system with the Silicon Valley Regional Interoperability Authority (SVRIA) and submit proof with the plans. PAFD 510.3.1
- Have a third-party consultant review the plans and issue a letter of acceptance before the fire permit submittal. PAFD, 3rd party requirements
- Get a construction permit; a frequency change on an existing system needs a new fire permit. PAFD 510.3
- Before final inspection, the same consultant submits an acceptance report with a 20-grid-per-floor test and an uplink test. PAFD, 3rd party requirements
Codes and standards referenced
Notes
Medium confidence: the standard is from 2020. We read it through an Internet Archive copy because the city site blocks automated requests; the live link is listed first.
Next step
Take the board a plan, not just a problem
Ask for up to 3 quotes from vetted installers who serve your area, or start with a one-page brief the board can read before the next meeting. Free for owners, boards and managers. No texts, no cold calls.
Questions people ask
Who must validate ERRCS test results in Palo Alto?
An approved third party independent of the system designer and installer, for both acceptance and annual tests (PAFD 510.5.3 item 8 and 510.6.1).
Sources
Primary documents we read for this page. Rules change; confirm with your fire marshal (AHJ).
- PAFD Section 510 - ERRCS Codes and Addendums, Palo Alto Emergency Responder Radio System Guidelines (Rev. 06/25/2020), City of Palo Alto Fire Department, Fire Prevention Bureau
- Internet Archive copy of the PAFD ERRCS standard, captured 2025-10-10 (the city site blocks automated requests), Internet Archive