38 C.F.R. § 21.3040
(a) Commencement. A program of education or special restorative training may not be afforded prior to the eligible person's 18th birthday or the completion of secondary schooling, whichever is earlier, unless it is determined through counseling that the best interests of the eligible person will be served by entering training at an earlier date and the eligible person has passed:
(d) Termination of eligibility. No person is eligible for educational assistance beyond his or her 31st birthday, except as provided under § 21.3041(g)(2). In no event may educational assistance be provided after the period of entitlement has been exhausted. In an exceptional case special restorative training may be provided in excess of 45 months. See § 21.3300.
(Authority: 38 U.S.C. 3512(a))
[30 FR 15632, Dec. 18, 1965, as amended at 34 FR 842, Jan. 18, 1969; 39 FR 38227, Oct. 30, 1974; 40 FR 42879, Sept. 17, 1975; 41 FR 47929, Nov. 1, 1976; 43 FR 35290, Aug. 9, 1978; 73 FR 30489, May 28, 2008]