Quick search by citation:

49 U.S. Code § 40126 - Severable services contracts for periods crossing fiscal years

(a) In General.—
The Administrator of the Federal Aviation Administration may enter into a contract for procurement of severable services for a period that begins in 1 fiscal year and ends in the next fiscal year if (without regard to any option to extend the period of the contract) the contract period does not exceed 1 year.
(b) Obligation of Funds.—
Funds made available for a fiscal year may be obligated for the total amount of a contract entered into under the authority of subsection (a).
Statutory Notes and Related Subsidiaries
Effective Date

Section applicable only to fiscal years beginning after Sept. 30, 1999, see section 3 of Pub. L. 106–181, set out as an Effective Date of 2000 Amendments note under section 106 of this title.