The revision of a decision on which an action is based is subject to the following regulations:
(a) Clear and unmistakable error, § 3.105(a);
(b) Difference of opinion, § 3.105(b);
(c) Character of discharge, § 3.105(c);
(d) Severance of service-connection, § 3.105(d);
(e) Reduction to less than compensable evaluation, § 3.105(e); (See §§ 21.48, 21.322, and 21.324)
(f) Review of decisions, § 21.416.
[49 FR 40814, Oct. 18, 1984, as amended at 84 FR 193, Jan. 18, 2019]