10 U.S.C. § 1402a: Recomputation of retired or retainer pay to reflect later active duty of members who first became members after September 7, 1980

who first became a member of a uniformed service after September 7, 1980 ; who has become entitled to retired pay or retainer pay; and who thereafter serves on active duty (other than for training), A member of an armed force who first became a member of a uniformed service after September 7, 1980 , who has been retired other than for physical disability and who while on active duty incurs a physical disability of at least 30 percent for which he would otherwise be eligible for retired pay under chapter 61 of this title, is entitled, upon his release from active duty, to retired pay under subsection (d). was retired for physical disability under section 1201 or 1204 of this title or any other law or whose name is on the temporary disability retired list; incurs, while on active duty after retirement or after his name was placed on the temporary disability retired list, a physical disability that is in addition to or that aggravates the physical disability for which he was retired or for which his name was placed on that list; and is qualified under section 1201, 1202, 1204, or 1205 of this title; A member of an armed force covered by subsection (b) or (c) may elect to receive either (1) the retired pay to which he became entitled when he retired, increased by any applicable adjustments in that pay under section 1401a of this title after he initially became entitled to that pay, or (2) retired pay computed according to the following table. Column 1 Take Column 2 Multiply by Column 3 Add 1 Before applying percentage factor, credit each full month of service that is in addition to the number of full years of service creditable to the member as one-twelfth of a year and disregard any remaining fractional part of a month. The retired pay base computed under section 1407(b) of this title . As member elects— (1) 2½ percent of years of service credited under section 1208 of this title ; or 1 (2) the highest percentage of disability, not to exceed 75 percent, attained while on active duty after retirement or after the date when his name was placed on temporary disability retired list, as the case may be. Amount necessary to increase product of columns 1 and 2 to 50 percent of pay upon which computation is based, if member is on temporary disability retired list. computed according to the formula set forth in subsection (a) but using the monthly retired pay base under which his retired pay or retainer pay was computed when he entered on that active duty; and increased by any applicable adjustments in that pay under section 1401a of this title after he initially became entitled to that pay. In the case of a member who is entitled to recompute retired pay under this section upon release from active duty served after retiring under section 7314 or 9314 of this title, the member’s retired pay as recomputed under another provision of this section shall be increased by 10 percent of the amount so recomputed if the member has been credited by the Secretary concerned with extraordinary heroism in the line of duty during any period of active duty service in the armed forces. The amount of the retired pay as recomputed under another provision of this section and as increased under paragraph (1) may not exceed the amount equal to 75 percent of the retired pay base upon which the recomputation of such retired pay is based. The determination of the Secretary concerned as to extraordinary heroism is conclusive for all purposes.