38 C.F.R. § 3.110
(b) The first day of the specified period referred to in paragraph (a) of this section shall be the date of mailing of notification to the claimant or beneficiary of the action required and the time limit therefor. The date of the letter of notification shall be considered the date of mailing for purposes of computing time limits. As to appeals, see §§ 19.52, 20.203, and 20.110 of this chapter.
(Authority: 38 U.S.C. 501)
[55 FR 13529, Apr. 11, 1990, as amended at 58 FR 32443, June 10, 1993; 84 FR 168, Jan. 18, 2019]