CFR > Title 5 - Administrative Personnel > CHAPTER I—OFFICE OF PERSONNEL MANAGEMENT > SUBCHAPTER B—CIVIL SERVICE REGULATIONS (parts 110 to 990) > PART 847—ELECTIONS OF RETIREMENT COVERAGE BY CURRENT AND FORMER EMPLOYEES OF NONAPPROPRIATED FUND INSTRUMENTALITIES > SUBPART H—Electing to Credit NAFI Service for CSRS and FERS Retirement Eligibility (§847.801 to §847.809) > 847.802—Who may elect to use NAFI service to qualify for immediate retirement under CSRS or FERS?