27 C.F.R. § 46.6
Any person who, having paid the tax with respect to an article, desires to claim refund or credit of any amount of such tax to which the provisions of this subpart are applicable must:
[T.D. 6395, 24 FR 599, Jan. 28, 1959. Redesignated at 40 FR 16835, Apr. 15, 1975, as amended by T.D. ATF-472, 67 FR 8880, Feb. 27, 2002]