19 C.F.R. § 145.53 Firearms and munitions of war.
Title 19 - Customs Duties
Importations of firearms, munitions of war, and related articles are subject to the import permit requirements and other restrictions set forth in 27 CFR parts 47, 178, 179. [T.D. 73–135, 38 FR 13369, May 21, 1973, as amended by T.D. 78–329, 43 FR 43455, Sept. 26, 1978]
Title 19: Customs Duties
PART 145—MAIL IMPORTATIONS
Subpart E—Restricted and Prohibited Merchandise
§ 145.53 Firearms and munitions of war.

