(a) Each fellowship consists of an institutional payment, a stipend, and any additional allowances permitted under this part.

(1) A fellowship may include additional allowances payable to a fellow in addition to the stipend, as determined by the Secretary and as allocated by an approved Center or Program.

(2) If the institutional payment determined by the Secretary is greater than the tuition and fees charged by the institution, the institutional payment portion of the fellowship is limited to actual costs.

(b) The Secretary announces the following in a notice published in the Federal Register:

(1) The amounts of the stipend and institutional payment for each type of fellow during an academic year.

(2) The amounts of the stipend and institutional payment for each type of fellow during a summer session.

(3) Whether travel allowances of any type will be permitted.

(4) Whether dependent allowances of any type will be permitted.

(5) The amounts of any permitted allowances.

(6) Any limitation on the applicability of the amounts or allowances addressed in this paragraph (b).

(c) Allowances are only permissible if the Secretary announces such allowances are permitted.

(d) If the Secretary limits the applicability of fellowship amounts or the permissibility of allowances by reference to time, including the performance period of one or more awards, in a notice published in the Federal Register and the applicability period lapses, the amounts contained in the most recent notice or notices addressing each topic will remain in force as provisional amounts until the Secretary publishes a new notice but any allowances will no longer be permitted until expressly authorized in a new notice.