(a) Portable and semi-portable extinguishers must be marked with a combined number and letter designation. The letter designates the general class of fire for which the extinguisher is suitable as identified in NFPA 10 (incorporated by reference, see §162.028-1). The number indicates the relative extinguishing potential of the device as rated by UL 711 (incorporated by reference, see §162.028-1).

(b) [Reserved]

[CGFR 60-36, 25 FR 10640, Nov. 5, 1960, as amended by USCG-2012-0196, 81 FR 48278, July 22, 2016]


Tried the LawStack mobile app?

Join thousands and try LawStack mobile for FREE today.

  • Carry the law offline, wherever you go.
  • Download CFR, USC, rules, and state law to your mobile device.