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550 tained on the active list in his regular grade until so entitled to retire,, and then retired. § 8914. Twenty to thirty years: regular enlisted members Under regulations to be prescribed by the Secretary of the A i r Force, a regular enlisted member of the Air Force who has at least 20, but less than 30, years of service computed under section 8925 of this title may, upon his request, be retired. He then becomes a member of the Air Force Reserve, and shall perform such active duty as may be prescribed under law, until his service computed under section 8925 of this title, plus his inactive service as a member of the Air Force Reserve, equals 30 years. § 8915. Twenty-five year s: female m a j o r s except those designated under section 8067 of this title Unless retired or separated at an earlier date, each female officer of the Air Force whose regular grade is major, except an officer designated under section 8067 of this title, shall be retired, except as provided by section 47a of title 5, on the thirtieth day after she completes 25 years of service computed under section 8927(a) of this title. § 8916. Twenty-eight year s: promotion-list lieutenant colonels (a) Unless retired or separated at an earlier date, each promotionlist officer in the regular grade of lieutenant colonel, except an Air Force nurse or a woman medical specialist, shall be retired, except as provided by section 47a of title 5, on the thirtieth day after he completes 28 years of service computed under section 8927(a) of this title. However, if his name is carried on the list of officers recommended for appointment to the regular grade of colonel, he shall be retained on the active list while his name is so carried. (b) The Secretary of the Air Force may defer the retirement under this section of— (1) any promotion-list officer in the regular grade of lieutenant colonel who is a medical, dental, veterinary, or medical service officer, or a chaplain, but not later than the date on which he becomes 60 years of age; (2) any female promotion-list officer in the regular grade of lieutenant colonel, except an officer designated under section 8067 of this title, until the thirtieth day after she completes 30 years of service computed under section 8927(a) of this title; and (3) any female promotion-list officer in the regular grade of lieutenant colonel, except an officer designated under section 8067 of this title, while serving in the temporary grade of colonel under section 8071 of this title. § 8917. T h i r t y year s or more: regular enlisted members. A regular enlisted member of the Air Force who has at least 30 years of service computed under section 8925 of this title shall be retired upon his request. § 8918. T h i r t y year s or more: regular commissioned officers A regular commissioned officer of the Air Force who has at least 30 years of service computed under section 8926 of this title may be retired upon his request, in the discretion of the President.
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