; and (D) providing financial incentives and disincentives for an eligible jurisdiction for the timely and cost-effective completion of activities and projects using assistance provided under this section. (3) Participation Participation in the new procedures adopted under paragraph (1) shall be at the election of an eligible jurisdiction, consistent with procedures determined by the Administrator. (4) Minimum procedures The new procedures adopted under paragraph (1) shall include the following: (A) Making grants on the basis of fixed estimates, if the eligible jurisdiction agrees to be responsible for any actual costs that exceed the estimate. (B) Providing an option for an eligible jurisdiction to elect to receive an in-lieu contribution, without reduction, on the basis of estimates of the costs and expenses associated with executing and managing projects. (C) Consolidating, to the extent determined appropriate by the Administrator, the facilities of an eligible jurisdiction as a single project based upon the estimates adopted under the procedures. (D) If the actual costs of a project completed under the procedures are less than the estimated costs thereof, permitting a grantee or subgrantee to use all or part of the excess funds for other activities allowed under section 404 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170c ) or to improve future hazard mitigation grant program operations or planning. (E) In determining eligible costs under section 404 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170c ), the Administrator shall, at the request of an eligible jurisdiction— (i) make available, at the request of an eligible jurisdiction and where the Administrator, or the certified cost estimate prepared by professionally licensed engineers of the eligible jurisdiction, has estimated an eligible Federal share for a project of not less than $5,000,000, an independent expert panel to validate the estimated eligible cost consistent with