27 C.F.R. § 479.21
(b) Requests for forms should be submitted to the ATF Distribution Center (http://www.atf.gov) or made by calling (202) 648-6420.
(5 U.S.C. 552(a); 80 Stat. 383, as amended)
[T.D. ATF-92, 46 FR 46916, Sept. 23, 1981, as amended by T.D. ATF-241, 51 FR 39630, Oct. 29, 1986; T.D. ATF-270, 53 FR 10508, Mar. 31, 1988; T.D. 372, 61 FR 20725, May 8, 1996; ATF-11F, 73 FR 57242, Oct. 2, 2008; ATF 2013R-9F, 79 FR 46693, Aug. 11, 2014]