City guide
Los Angeles Reg 4 Testing: A Property Manager's Orientation
The LAFD Regulation 4 program in plain English — licensed testers, filed test reports, and the records you're expected to produce.
4 min read
Verify current local ordinance — requirements change.
This guide is a general orientation, not legal advice. Local fire codes are amended regularly; always check the city’s current fire code and confirm specifics with your authority having jurisdiction (AHJ) before relying on anything here.
What "Reg 4" means
In the City of Los Angeles, the fire department (LAFD) runs a program commonly known as Regulation 4 — a city framework for the periodic testing of fire protection equipment. The core idea: certain fire protection systems must be tested on a recurring schedule by testers the city has licensed for that class of equipment, and the test results are reported to LAFD on the department's forms.
That structure makes Los Angeles different from cities that rely on NFPA 25 alone. In LA, the test isn't finished when the technician packs up — it's finished when the report is properly filed and you, the owner's representative, have your copy on file. Check LAFD's current Reg 4 program materials for which systems are covered, the current intervals, and who may perform the tests; the details are the city's to define and they change.
What this means for property managers
- Use licensed testers. Reg 4 testing is performed by city-licensed testers for the applicable equipment category. Confirm your contractor's license status for each system type before the test, not after.
- Own your copies. LAFD gets its filing, but the fire inspector who walks your property will ask you for test history. Keep every Reg 4 report and every NFPA 25-style ITM record in your own files.
- Track two clocks. Reg 4 intervals and NFPA 25 intervals overlap but are not identical. The safe posture is a calendar that tracks both — see the NFPA 25 frequency chart for the national baseline.
- Budget for it. Fire pump flow tests and standpipe tests in older mid-rise and high-rise stock are recurring line items, not surprises.
The failure mode to avoid
The common LA story: a building changes contractors, the old contractor filed the Reg 4 reports, and nobody kept owner copies. Years later a due-diligence review or an LAFD inspection asks for test history, and the building is reconstructing its own records from the fire department's files.
FireCode 360 keeps the owner's copy by default — every inspection and test your contractor completes produces a PDF record in your account, with reminders driven by each system's required frequency. Start a free trial.
General orientation only — not legal advice, and not a statement of current LAFD requirements. The Reg 4 program's scope, intervals, and forms are defined by the city and change over time; verify current local ordinance with LAFD and your AHJ.