5 C.F.R. § 847.414 Crediting future NAFI service.
Title 5 - Administrative Personnel
An employee who elects CSRS or FERS coverage under §847.411 will be covered by CSRS or FERS during all periods of future service not excluded from coverage by CSRS or FERS, including any periods of service with a NAFI and service as a reemployed annuitant.
Title 5: Administrative Personnel
PART 847—ELECTIONS OF RETIREMENT COVERAGE BY CURRENT AND FORMER EMPLOYEES OF NONAPPROPRIATED FUND INSTRUMENTALITIES
Subpart C—Procedures for Elections Under the Retroactive Provisions
Elections of CSRS or FERS Coverage Based on a Move From CSRS or FERS to NAFI
§ 847.414 Crediting future NAFI service.