38 C.F.R. § 21.4273
(a) In residence.
(2) An accredited graduate or advanced professional course, including law as specified in § 21.4274, pursued in residence at an institution of higher learning will be measured in accordance with § 21.4272 unless it is the established policy of the school to consider less than 14 semester hours or the equivalent as full-time enrollment, or the course includes research, thesis preparation, or a comparable prescribed activity beyond that normally required for the preparation of ordinary classroom assignments. In either case a responsible official of the school will certify that the veteran or eligible person is pursuing the course full, three-quarter, one-half, less than one-half but more than one-quarter, or one quarter or less time.
(Authority: 38 U.S.C. 3688(b))
(b) In absentia. A responsible official of the school will certify a program of research pursued by a veteran or eligible person in absentia as full, three-fourths, one-half, less than one-half but more than one-quarter, or one-quarter or less time, and the activity will be assessed by the Department of Veterans Affairs accordingly when:
(c) Undergraduate or combination. If a graduate student is enrolled in both graduate and undergraduate courses concurrently, or solely in undergraduate courses, VA will measure such an enrollment using the provisions of § 21.4272 or the graduate school's assessment of training time, whichever will result in a higher monthly rate for the veteran.
(Authority: 38 U.S.C. 3668(b); Pub. L. 102-568)
[31 FR 6774, May 6, 1966, as amended at 31 FR 8293, June 14, 1966; 32 FR 4411, Mar. 23, 1967; 50 FR 21606, May 28, 1985; 61 FR 28755, June 6, 1996]