An employee performing service with the uniformed services must be permitted, upon request, to use any accrued annual leave under 5 U.S.C. 6304 , military leave under 5 U.S.C. 6323 , earned compensatory time off for travel under 5 U.S.C. 5550b , or sick leave under 5 U.S.C. 6307 , if appropriate, during such service.
5 C.F.R. §353.208