Regulations last checked for updates: May 04, 2026

Title 27 - Alcohol, Tobacco Products and Firearms last revised: Apr 23, 2026
All TitlesTitle 27Chapter IPart 72Subpart B - Subpart B—Definitions
authority: 18 U.S.C. 921,1261; 19 U.S.C. 1607,1610,1612,1613,1618; 26 U.S.C. 7101,7322,7326,7805; 31 U.S.C. 9301,9303,9304,9306; 40 U.S.C. 304(k); 49 U.S.C. 784,788
source: T.D. ATF-9, 39 FR 9954, Mar. 15, 1974, unless otherwise noted.
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