Any FERS service which becomes creditable under a retirement system established for nonappropriated fund employees due to an election made under part 847 of this chapter is not creditable for any purpose under FERS.
5 C.F.R. §842.310
Any FERS service which becomes creditable under a retirement system established for nonappropriated fund employees due to an election made under part 847 of this chapter is not creditable for any purpose under FERS.
5 C.F.R. §842.310