Fire Chief’s Regulation No. 4 (REG 4)

What is LAFD Reg 4?

Regulation 4 (Reg 4) is a Los Angeles Fire Department–mandated testing program that requires annual and 5‑year inspections of fire‑life safety systems such as fire pumps, sprinklers, standpipes, alarms, and more. Only certified testers can perform Reg 4 tests.

Reg 4 was created in the 1960s after several major fires — including the Olive Street fire — revealed that many buildings had fire protection systems that were installed but never tested. LAFD created Reg 4 to ensure systems are regularly inspected, maintained, and ready for real emergencies.

What systems require Reg 4 testing?

  • Automatic Closing Fire Assemblies

  • Automatic Elevator (Phase I & Phase II)

  • Automatic Sprinkler System (CZFP Cesar Santos Certified Tester)

  • Basic Fire Alarm Systems Only

  • Complex Fire Alarm and Supervising Station Alarm Systems

  • Stored Electrical Energy Systems Only

  • Supervising Station Alarm

  • Class I Standpipe

  • Class II Standpipe

  • Class III Standpipe

  • Combined Standpipe and Automatic Sprinkler System (CZFP Cesar Santos Certified Tester)

  • Elevator Witness Only

  • Emergency Generator and Battery Systems

  • Fire Escape Assemblies

  • Fire Pumps (CZFP Cesar Santos Certified Tester)

  • Gas Detection

  • Mechanical Smoke Proof Enclosures

  • Pressurized Stair-shaft

  • Smoke Evacuation (909/905)

How often is Reg 4 testing required?

  • Annually: Fire pump, alarms, emergency power, and other life‑safety systems

  • Every 5 years: Automatic Sprinkler Systems, Standpipes Systems flow tests

Who is allowed to perform Reg 4 testing?

Only LAFD‑certified Reg 4 testers are authorized to perform and submit Reg 4 inspections. Certification ensures the tester understands LAFD procedures, NFPA standards, and proper testing methods.

What happens if my building fails a Reg 4 test?

You will receive a deficiency report outlining what needs to be corrected. After repairs are completed, a certified tester performs a re‑test and submits the passing certification to LAFD.

Do you submit the certification to LAFD?

Yes. After testing is complete, we submit all required documentation and certification directly to the LAFD Reg 4 portal on your behalf.

Will I receive documentation for the fire department?

Yes. We provide full LAFD Reg 4 reports and defects list.

What are common issues/defects found during a Reg 4 testing?

  • Missing or painted sprinkler heads

  • Corroded or leaking piping

  • Closed or partially closed valves

  • Damaged or obstructed FDCs

  • Failed Fire Pump performance

  • Blocked standpipe outlets

  • Faulty alarms or supervisory devices

Can you repair defects you find?

Absolutely. We provide repair quotes and fast turnaround.

At Czar Fire Protection INC, we are Reg 4 certified specializing in,

  • Fire Pumps

  • Automatic Sprinkler Systems

  • Combined Standpipes

How do I schedule a Reg 4 test?

You can contact us directly to schedule annual or 5‑year Reg 4 testing. We offer fast turnaround, clear reporting, and full LAFD compliance.