(a) If an eligible petitioner awarded a route under this part ceases to operate the service or fails to fulfill its obligations under the contract required under §269.13, the Administrator, in collaboration with the Surface Transportation Board, shall take any necessary action consistent with title 49 of the United States Code to enforce the contract and ensure the continued provision of service, including the installment of an interim service and re-bidding the contract to operate the service.

(b) In re-bidding the contract, the entity providing service must either be Amtrak or an eligible petitioner.