(a) A leave recipient may use annual leave transferred to his or her annual leave account under § 630.906 only for the purpose of a medical emergency for which the leave recipient was approved.
(b) Except as provided in § 630.907, during each biweekly pay period that a leave recipient is affected by a medical emergency, he or she shall use any accrued annual leave (and sick leave, if applicable) before using transferred annual leave.
(c) The approval and use of transferred annual leave shall be subject to all of the conditions and requirements imposed by chapter 63 of title 5, United States Code, part 630 of this chapter, and the employing agency on the approval and use of annual leave accrued under 5 U.S.C. 6303, except that transferred annual leave may accumulate without regard to the limitation imposed by 5 U.S.C. 6304(a).
(d) Transferred annual leave may be substituted retroactively for any period of leave without pay or used to liquidate an indebtedness for any period of advanced leave that began on or after the date fixed by the agency as the beginning of the medical emergency.
(e) Transferred annual leave may not be—
(1) Transferred to another leave recipient under this subpart, except as provided in § 630.911(e)(3);