5 CFR §842.207
- (a)An employee who separates from service, except by removal for cause or charges of delinquency or misconduct, is entitled to an annuity—
- (1)After completing 25 years of service as an air traffic controller; or
- (2)After becoming age 50 and completing 20 years of service as an air traffic controller.
- (b)An annuity payable under paragraph (a) of this section commences on the first day of the month following separation.