38 CFR § 21.5230 - Programs of education.
(a) Approving the selected program of education. Except as provided in paragraphs (b) and (c) of this section, VA will approve a program of education for a veteran or servicemember under 38 U.S.C. chapter 32, only if -
(3) Any courses, subjects, or licensing or certification tests in the program are approved for VA training; and
(4) Except for a program consisting of a licensing or certification test designed to help the veteran or servicemember maintain employment in a vocation or profession, the veteran or servicemember is not already qualified for the objective of the program.
(b) Programs which include secondary school training. VA may approve the enrollment of a veteran or servicemember in a refresher, remedial, deficiency or other preparatory or special educational assistance course when the veteran or eligible servicemember needs the course in order to pursue an approved program of education.
(c) Refresher training for those already qualified. The refresher training referred to in paragraph (b) of this section includes training in a course or courses for which the veteran is already qualified provided the course or courses permit the veteran to update knowledge and skills or to be instructed in the technological advances which have occurred in the veteran's field of employment. The relevant field of employment may have been pursued either before, during or after the veteran's active duty.