obligation until the Assistant Secretary-Indian Affairs provides the reports requested by the Committees on Appropriations of the House of Representatives and the Senate related to the Tiwahe Initiative. Contract support costs For payments to tribes and tribal organizations for contract support costs associated with Indian Self-Determination and Education Assistance Act agreements with the Bureau of Indian Affairs and the Bureau of Indian Education for fiscal year 2021, such sums as may be necessary, which shall be available for obligation through September 30, 2022: Provided , That notwithstanding any other provision of law, no amounts made available under this heading shall be available for transfer to another budget account. Payment for Tribal leases For payments to tribes and tribal organizations for leases pursuant to section 105(l) of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5324(l) ) for fiscal year 2021, such sums as may be necessary, which shall be available for obligation through September 30, 2022: Provided , That notwithstanding any other provision of law, no amount made available under this heading shall be available for transfer to another budget account. Construction (including transfer of funds) For construction, repair, improvement, and maintenance of irrigation and power systems, buildings, utilities, and other facilities, including architectural and engineering services by contract