5 U.S. Code § 6362
5 U.S. Code § 6362 is about General authority. It is under Subchapter IV (Voluntary Leave Bank Program) of Chapter 63 (Leave) of Subpart E (Attendance and Leave) of Part III (Employees) of Title 5 (Government Organizations and Employees) of the Code.
Notwithstanding any provision of subchapter I, and subject to the provisions of this subchapter, the Office of Personnel Management shall establish a program under which—
(1)annual leave accrued or accumulated by an employee may be contributed to a leave bank established by the employing agency of such employee; and
(2)leave from such a leave bank may be made available to an employee who requires such leave because of a medical emergency.