27 CFR § 479.163
Reuse of stamps prohibited
April 24, 2020
A stamp once affixed to one document cannot lawfully be removed and affixed to another. Any person willfully reusing such a stamp shall be subject to the penalty prescribed by 26 U.S.C. 7208.
[36 FR 14256, Aug. 3, 1971. Redesignated by 40 FR 16835, Apr. 15, 1975, and amended by T.D. ATF-48, 44 FR 55843, Sept. 28, 1979]