StacksVerified U.S. regulatory reference

46 CFR §108.637

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Each hand portable fire extinguisher must be marked with a number that identifies it in relation to all other hand portable fire extinguishers.
  2. (b)The location of each hand portable fire extinguisher must be marked with the same number that is marked on the extinguisher.