CFR > Title 5 - Administrative Personnel > CHAPTER I—OFFICE OF PERSONNEL MANAGEMENT > SUBCHAPTER B—CIVIL SERVICE REGULATIONS (parts 110 to 990) > PART 846—FEDERAL EMPLOYEES RETIREMENT SYSTEM—ELECTIONS OF COVERAGE > SUBPART C—Effect of an Election To Become Subject to FERS (§846.301 to §846.305) > 846.301—General rules.

846.301—General rules.

(a) An individual who becomes covered by FERS as a result of an election under § 846.201 is subject to the provisions of chapter 84 of title 5, United States Code and parts 841 through 845 of this chapter, except as provided in this part.
(b) Civilian service performed before the effective date of the election under § 846.201 is not creditable under FERS except as provided in this part.