(a) FERS annuitants.   (1) The annuity of a FERS annuitant who is a disability annuitant whom OPM has found recovered or restored to earning capacity prior to reemployment terminates on reemployment.   (2) The annuity of a FERS annuitant who is a former military reserve technician awarded a disability retirement annuity under 5 U.S.C. 8456, in addition to being subject to paragraph (a)(1) of this section, shall terminate on the date the annuitant declines an offer of employment with a department or agency, where the employment is in the same commuting area and of the same grade as, or a level equivalent to, the position from which the annuitant retired.

(b) CSRS annuitants.   (1) The annuity of a CSRS annuitant terminates on reemployment if —   (i) The annuitant is a disability annuitant whom OPM has found recovered or restored to earning capacity prior to reemployment, or whose disability annuity was awarded under the provisions of 5 U.S.C. 8337(h) because the annuitant was a National Guard Technician who was medically disqualified for continued membership in the National Guard;   (ii) The annuitant is not a retired Member and the annuity is based on an involuntary separation (other than a separation that was mandated by statute based on the annuitant's age and length of service, or a separation for cause on charges of misconduct or delinquency) where the reemployment would, if the individual were not an annuitant, be covered by CSRS;   (iii) The annuitant is not a retired Member and is appointed by the President to a position that would, if the individual were not an annuitant, be covered by CSRS; or   (iv) The annuitant is not a retired Member and is elected as a Member.   (2) A disability annuity awarded a former National Guard Technician under the provisions of 5 U.S.C. 8337(h) shall terminate on the date the annuitant declines an offer of employment with a department or agency, where the employment is in the same commuting area and of the same grade as, or a level equivalent to, the position from which the annuitant retired.