; of which $41,727,000 shall remain available until expended for the purpose of mineral revenue management activities: Provided , That notwithstanding any other provision of law, $15,000 shall be available for refunds of overpayments in connection with certain Indian leases in which the Secretary concurred with the claimed refund due, to pay amounts owed to Indian allottees or tribes, or to correct prior unrecoverable erroneous payments. Payments in Lieu of Taxes For necessary expenses for payments authorized by chapter 69 of title 31, United States Code, $500,000,000 shall be available for fiscal year 2019. General Provisions, Department of the Interior (including transfers of funds) emergency transfer authority—intra-bureau 101. Appropriations made in this title shall be available for expenditure or transfer (within each bureau or office), with the approval of the Secretary, for the emergency reconstruction, replacement, or repair of aircraft, buildings, utilities, or other facilities or equipment damaged or destroyed by fire, flood, storm, or other unavoidable causes: Provided , That no funds shall be made available under this authority until funds specifically made available to the Department of the Interior for emergencies shall have been exhausted: Provided further , That all funds used pursuant to this section must be replenished by a supplemental appropriation, which must be requested as promptly as possible. emergency transfer authority—department-wide 102. The Secretary may authorize the expenditure or transfer of any no year appropriation in this title, in addition to the amounts included in the budget programs of the several agencies, for the suppression or emergency prevention of wildland fires on or threatening lands under the jurisdiction of the Department of the Interior; for the emergency rehabilitation of burned-over lands under its jurisdiction; for emergency actions related to potential or actual earthquakes, floods, volcanoes, storms, or other unavoidable causes