42 USC 2101 - Annual and sick leave

(a) Regulations 
In accordance with regulations of the President, commissioned officers of the Regular Corps and officers of the Reserve Corps on active duty may be granted annual leave and sick leave without any deductions from their pay and allowances: Provided, That such regulations shall not authorize annual leave to be accumulated in excess of sixty days.
(b) Repealed. Pub. L. 87–649, § 14b, Sept. 7, 1962, 76 Stat. 499 
(c) Repealed. Pub. L. 96–76, title III, § 311, Sept. 29, 1979, 93 Stat. 586 
(d) Definitions 
For purposes of this section the term accumulated annual leave means unused accrued annual leave carried forward from one leave year into a succeeding leave year, and the term accrued annual leave means the annual leave accruing to an officer during one leave year.