20 USC § 4504
Period for award
through Pub. L. 116-344, except Pub. Ls. 116-260 and 116-283
Junior fellowships shall be granted for such periods as the Foundation may prescribe but not to exceed two academic years. Senior fellowship shall be granted for such periods as the Foundation may prescribe, but not to exceed five calendar years.
Codification
Pub. L. 99–591 is a corrected version of Pub. L. 99–500.