38 CFR § 21.7803
Revision of decisions
November 5, 2020
The revision of a decision on which an action was predicated is subject to the following sections:
(a) Clear and unmistakable error, §3.105(a) of this chapter; and
(b) Difference of opinion, §3.105(b) of this chapter.
(Authority: 38 U.S.C. 511)