In 1989, prior to the enactment of the 1994 legislation, the George H. W. Bush administration had banned the importation of foreign-made, semiautomatic rifles deemed not to have "a legitimate sporting use". It did not affect similar but domestically manufactured rifles.[15] (The Gun Control Act of 1968 gives discretion to the Attorney General of the United States to choose whether to "authorize a firearm or ammunition to be imported or brought into the United States" under what is known as "the sporting purposes test".[14]) Following the enactment of the Federal Assault Weapons Ban, the ATF determined that "certain semiautomatic assault rifles could no longer be imported even though they were permitted to be imported under the 1989 'sporting purposes test' because they had been modified to remove all of their military features other than the ability to accept a detachable magazine", and so in April 1998 "prohibited the importation of 56 such rifles, determining that they did not meet the 'sporting purposes test'".[14]