; and (B) does not include— (i) a reemployed annuitant under subchapter III of chapter 83 or chapter 84 of title 5 or any other retirement system for employees of the Federal Government; (ii) an employee having a disability on the basis of which such employee is or would be eligible for disability retirement under any of the retirement systems referred to in clause (i); or (iii) for purposes of eligibility for separation incentives under this subsection, an employee who is in receipt of a decision notice of involuntary separation for misconduct or unacceptable performance. (2) Authority The Administrator may establish a program under which employees may be eligible for early retirement, offered separation incentive pay to separate from service voluntarily, or both. This authority may be used to reduce the number of personnel employed or to restructure the workforce to meet mission objectives without reducing the overall number of personnel. This authority is in addition to, and notwithstanding, any other authorities established by law or regulation for such programs. (3) Early retirement An employee who is at least 50 years of age and has completed 20 years of service, or has at least 25 years of service, may, pursuant to regulations promulgated under this subsection, apply and be retired from the Administration and receive benefits in accordance with subchapter III of chapter 83 or 84 of title 5 if the employee has been employed continuously within the Administration for more than 30 days before the date on which the determination to conduct a reduction or restructuring within 1 or more Administration centers is approved. (4) Separation pay (A) In general Separation pay shall be paid in a lump sum or in installments and shall be equal to the lesser of— (i) an amount equal to the amount the employee would be entitled to receive under section 5595(c) of title 5, if the employee were entitled to payment under such section