Code of Federal Regulations Title 5. Administrative Personnel § 5.837.801 Unperfected entitlement to CSRS benefits based on a prior separation

(a) An employee who meets the age and service requirements for title to a non-disability annuity under CSRS on the basis of a prior separation, but did not apply for that annuity before a subsequent separation from service to which a different annuity entitlement attaches, may elect, on application, to receive either—

(b) When an individual who has applied for a deferred annuity under CSRS is reemployed under CSRS before the commencing date of that annuity, the application is deemed to have not been made.