To be covered by this subpart, an employee must have:
(a) Separated from Federal civilian service or entered leave-without-pay status in order to perform military service; and(b) Become eligible to seek reemployment or restoration to duty by virtue of a release from military service, discharge from hospitalization, or other similar event that occurred on or after August 2, 1990; and(c) Been reemployed in, or restored to, a position covered by CSRS or FERS pursuant to the provisions of 38 U.S.C. chapter 43.