(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 § 162.039-1). The number indicates the relative extinguishing potential of the device as rated by UL 711 (incorporated by reference, see § 162.039-1).
(b) [Reserved]
[CGFR 65-9, 30 FR 11487, Sept. 8, 1965, as amended by USCG-2012-0196, 81 FR 48279, July 22, 2016]
authority: 33 U.S.C. 1321(j), 1903;
46 U.S.C. 3306,
3703,
4302; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.3
cite as: 46 CFR 162.039-2