(a) An employee may elect to use annual leave and remain on the agency's rolls in order to establish initial eligibility for immediate retirement under 5 U.S.C. 8336,8412,or,and.S.C. 8905 to continue health benefits coverage into retirement, as provided in:

(1) Section 351.606(b)(1) for an employee who would otherwise have been separated by reduction in force procedures under part 351 of this chapter; or

(2) Section 351.606(b)(2) of this chapter for an employee who would otherwise have been separated by adverse action procedures under authority of part 752 of this chapter because of the employee's decision to decline relocation (including transfer of function).

(b)(1) Annual leave that may be used for the purposes described in paragraph (a) of this section includes all accumulated, accrued, and restored annual leave to the employee's credit prior to the effective date of the reduction in force or relocation (including transfer of function) and annual leave earned by an employee while in a paid leave status after the effective date of the reduction in force or relocation (including transfer of function).

(2) Annual leave that is advanced to an employee under 5 U.S.C. 6302(d), including any advance annual leave that may be credited to an employee's leave account after the effective date of the reduction in force or relocation (including transfer of function), may not be used for purpose of this section.

(3) For purposes of this section, the employing agency may approve the use of any or all annual leave donated to an employee under part 630, subpart I, of this chapter (Voluntary Leave Transfer Program), or made available to the employee under part 630, subpart J, of this chapter (Voluntary Leave Bank Program), as of the effective date of the reduction in force or relocation.