(1) Except as otherwise provided in this section, while an employee is in a transferred leave status, annual leave and sick leave shall accrue to the credit of such employee at the same rate as if such employee were then in a paid leave status under subchapter I, except that
(A) the maximum amount of annual leave which may be accrued by an employee while in transferred leave status in connection with any particular medical emergency may not exceed 5 days; and
(B) the maximum amount of sick leave which may be accrued by an employee while in transferred leave status in connection with any particular medical emergency may not exceed 5 days.
(2) Any annual or sick leave accrued by an employee under this section
(A) shall be credited to an annual leave or sick leave account, as appropriate, separate from any leave account of such employee under subchapter I; and
(B) shall not become available for use by such employee, and may not otherwise be taken into account under subchapter I, until, in accordance with subsection (c), it is transferred to the appropriate leave account of such employee under subchapter I.