Los Angeles Fire Chiefs Regulation 4
Riverside County, San Bernardino, Los Angeles
The Regulation 4 testing program of the City of Los Angeles was implementing to make sure that all Fire Protection systems and equipment are operational in a uniform manner. The concern that this regulation addressed is making all systems comply with one set of rules, and to certify companies and individuals knowledgeable to install and repair city-wide fire protection systems.

Companies can be certified in these areas:
- Automatic Closing Fire Assemblies Testers
- Automatic Elevator (Phase I & II) Testers
- Automatic Sprinkler Testers
- Basic Fire Alarm Systems Only Testers
- Basic and Complex Fire Alarm Systems Testers
- Battery Systems Only Testers
- Central Station Testers
- Class I Standpipe Testers
- Class II Standpipe Testers
- Class III Standpipe Testers
- Combined Standpipe Testers
- Elevator Witness Only Testers
- Emergency Generator and Battery Systems Testers
- Fire Escape Assemblies Testers
- Fire Pumps Testers
- Gas Detection Tests
- Mechanical Smoke Proof Enclosures Testers
- Pressurized Stairshaft Testers
- Smoke Evacuation (909/905) Testers
- Highrise Life/Safety Consultant List
- Healthcare Facility Instructor Consultant List
Testing frequency is also outlined in the Regulation 4 as outlined here:
- Basic Fire Warning Systems - 1 year
- Complex Fire Warning Systems - 1 year
- Central Station Signaling Systems - 1 year
- Smoke Management Systems - 1 year
- Elevators, Automatic - 1 year
- Emergency Generator and Lighting Systems
- All Occupancies - 1 year
- Fire Doors: All Types/All Occupancies - 1 year
- Fire Escapes - 1 year
- Class I Standpipe Systems - 5 years
- Class II Standpipe Systems - 5 years
- Class III Standpipe Systems - 5 years
- Combined Standpipe Systems - 5 years
- Class H Standpipe Systems - 5 years
- Fire Pumps - 1 year
- Automatic Fire Sprinkler Systems - 5 years
Note: Pre-action, Deluge and Dry Pipe Systems are tested annually.
- Pressure Reducing Valves (PRV's)
- Partial Flow - 1 year
- Full Flow - 5 years
If your company is in need of Los Angeles Regulation 4 testing, please give Omega Fire Protection a call.