10 U.S.C. § 12741: Retirement for service in an active status performed in the Selected Reserve of the Ready Reserve after eligibility for regular retirement

satisfies the requirements specified in paragraphs (1) and (2) of such section for entitlement to retired pay under this chapter; served in an active status in the Selected Reserve of the Ready Reserve after becoming eligible for retirement under chapter 65, 741, 841, or 941 of this title (without regard to whether the person actually retired or received retired or retainer pay under one of those chapters); and completed not less than two years of satisfactory service (as determined by the Secretary concerned) in such active status (excluding any period of active service). completed at least one year of service in a position of adjutant general required under section 314 of title 32 or in a position of assistant adjutant general subordinate to such a position of adjutant general; and failed to complete the minimum years of service solely because the appointment of the person to such position was terminated or vacated as described in section 324(b) of title 32 . terminate the eligibility of the person to retire under chapter 65, 741, 841, or 941 of this title, if the person is not already retired under one of those chapters, and terminate entitlement of the person to retired or retainer pay under one of those chapters, if the person was already receiving retired or retainer pay under one of those chapters; and in the case of a reserve commissioned officer, transfer the officer to the Retired Reserve. An election under subsection (a) shall be made within such time and in such form as the Secretary concerned requires. except as provided in paragraph (2)(B), as of the date on which the person attains the eligibility age applicable to the person under section 12731(f) of this title , if the Secretary concerned receives the election in accordance with this section within 180 days after that date; or the date of the receipt of the election is more than 180 days after the date on which the person attains the eligibility age applicable to the person under such section; or the person retires from service in an active status within that 180-day period.