43 C.F.R. § 423.31 – Fires and flammable material.

(a) You must not leave a fire unattended, and it must be completely extinguished before your departure.
(b) You must not improperly dispose of lighted smoking materials, including cigarettes, cigars, pipes, matches, or other burning material.
(c) You must not burn materials that produce toxic fumes, including, but not limited to, tires, plastic, flotation materials, or treated wood products.
(d) You must not transport gasoline and other fuels in containers not designed for that purpose.
(e) You must comply with all applicable Federal, State, and local fire orders, restrictions, or permit requirements.