StacksVerified U.S. regulatory reference

14 CFR §25.854

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For airplanes with a passenger capacity of 20 or more:
  1. (a)Each lavatory must be equipped with a smoke detector system or equivalent that provides a warning light in the cockpit, or provides a warning light or audible warning in the passenger cabin that would be readily detected by a flight attendant; and
  2. (b)Each lavatory must be equipped with a built-in fire extinguisher for each disposal receptacle for towels, paper, or waste, located within the lavatory. The extinguisher must be designed to discharge automatically into each disposal receptacle upon occurrence of a fire in that receptacle.