High Quality Content by WIKIPEDIA articles! The National Firearms Act ("NFA"), 73rd Congress, Sess. 2, ch. 757, 48 Stat. 1236, enacted on June 26, 1934, currently codified as amended as 26 U.S.C. ch. 53, is an Act of Congress that, in general, imposes a statutory excise tax on the manufacture and transfer of certain firearms and mandates the registration of those firearms. The Act was passed shortly after the repeal of Prohibition. The NFA is also referred to as Title II of the Federal firearms laws. The Gun Control Act of 1968 ("GCA") is Title I.