38 C.F.R. § 21.51
For the purposes of § 21.50, an employment handicap will be found to exist only if a CP or VRC determines that the individual meets each of the following conditions:
(b) Effects of impairment not overcome. The individual has not overcome the effects of the individual's impairment of employability through employment in, or qualifying for employment in, an occupation consistent with his or her abilities, aptitudes, and interests. This situation includes an individual who qualifies for a suitable job, but who does not obtain or keep the job for reasons beyond his or her control.
(Authority: 38 U.S.C. 3102)
(c) Contribution of the service-connected disability(ies) to the individual's overall vocational impairment.
(3) For determinations made on applications for vocational rehabilitation filed on or after March 30, 1995, but before October 9, 1996, the individual's service-connected disability(ies) need not contribute to the individual's overall vocational impairment.
(Authority: 38 U.S.C. 3101, 3102)
[72 FR 14042, Mar. 26, 2007]