Before producing any agricultural wine, the proprietor shall obtain an approval of the formula and process by which it is to be made pursuant to the provisions of Sec. 24.80. Any change in a formula will be approved in advance as provided by Sec. 24.81. (Sec. 201, Pub. L. 85-859, 72 Stat. 1386, as amended (26 U.S.C. 5387)) (Approved by the Office of Management and Budget under control number 1512-0059) [T.D. ATF-299, 55 FR 24989, June 19, 1990, as amended by T.D. ATF-409, 64 FR 13685, Mar. 22, 1999]