The provisions in this part are in addition to, and are not in lieu of, any other provision of law, or regulations, respecting commerce in firearms or ammunition. For regulations applicable to traffic in machine guns, destructive devices, and certain other firearms, see Part 479 of this chapter. For statutes applicable to the registration and licensing of persons engaged in the business of manufacturing, importing or exporting arms, ammunition, or implements of war, see section 38 of the Arms Export Control Act (22 U.S.C. 2778) and regulations thereunder and Part 447 of this chapter. For statutes applicable to nonmailable firearms, see 18 U.S.C. 1715 and regulations thereunder. [T.D. ATF-270, 53 FR 10490, Mar. 31, 1988]