49 C.F.R. § 513.10
(b) The determination of whether, to whom, or in what amount to make an award shall be in the discretion of the Administrator. In determining whether to grant an award to a whistleblower eligible for an award and the amount of an award, the Administrator shall take into consideration, as appropriate:
(c) If the Administrator determines that an award is warranted, the Administrator shall determine the amount of such award or awards to one or more whistleblowers. Whistleblower awards shall be in an aggregate amount equal to—