27 CFR § 71.2
Liberal construction
April 24, 2020
The regulations in this part shall be liberally contrued to secure just, expeditious, and efficient determination of the issues presented. The Rules of Civil Procedure for the U.S. District Courts (28 U.S.C. appendix), where applicable, shall be a guide in any situation not provided for or controlled by this part but shall be liberally construed or relaxed when necessary.
(5 U.S.C. 552(a) (80 Stat. 383, as amended))
[T.D. ATF-92, 46 FR 46917, Sept. 23, 1981]