14 U.S.C. § 743 : US Code - Section 743: Rear admiral and rear admiral (lower half); maximum service in grade

Search 14 U.S.C. § 743 : US Code - Section 743: Rear admiral and rear admiral (lower half); maximum service in grade

(a) Unless retained in or removed from an active status under any
other law, a reserve rear admiral or rear admiral (lower half)
shall be retired on July 1 of the promotion year immediately
following the promotion year in which that officer completes 4
years of service after the appointment of the officer to rear
admiral (lower half).
(b) Notwithstanding any other provision of law, if promotion of
inactive duty promotion list officers to the grade of rear admiral
is not determined in accordance with a running mate system, a
Reserve officer serving in an active status in the grade of rear
admiral (lower half) shall be promoted to the grade of rear
admiral, if acceptable to the President and the Senate, on the date
the officer has served 2 years in an active status in grade of rear
admiral (lower half), or in the case of a vacancy occurring prior
to having served 2 years in an active status, on the date the
vacancy occurs, if the officer served at least 1 year in an active
status in the grade of rear admiral (lower half).