Class 3 – Flammable and Combustible liquids
Placards
For FLAMMABLE, placard 454 kg (1,001 lbs) or more. GASOLINE may be used in place of FLAMMABLE placard displayed on a cargo tank or portable tank transporting gasoline by highway. Placard combustible liquid transported in bulk. See §172.504(f)(2) for use of FLAMMABLE placard in place of COMBUSTIBLE. FUEL OIL may be used in place of COMBUSTIBLE on a cargo or portable tank transporting fuel oil not classed as a flammable liquid by highway.In addition to complying with 49 CFR §172.519, the background color on the FLAMMABLE placard must be red. The symbol, text, class number and inner border must be white.
The word “GASOLINE” may be used in place of the word “FLAMMABLE” on a placard that is displayed on a cargo tank or a portable tank being used to transport gasoline by highway. The word “GASOLINE” must be shown in white.
The placards must be as follows:
Source: 49 CFR §172.528, 172.530, 172.532, 172.540
Label
In addition to complying with 49 CFR §172.407, the background color on the FLAMMABLE LIQUID label must be red.The labels must be as follows:
Source: 49 CFR §172.419