27 C.F.R. § 447.31
Registration requirement
Persons engaged in the business, in the United States, of importing articles enumerated on the U.S. Munitions Import List must register by making an application on ATF Form 4587.
Persons engaged in the business, in the United States, of importing articles enumerated on the U.S. Munitions Import List must register by making an application on ATF Form 4587.