; up to $50,000,000 may be used for staff quarters; up to $50,000,000 is for equipment; and no more than $200,000,000 is available to reduce the Backlog of Essential Maintenance, Alteration and Repair: Provided , That none of the funds provided under this heading shall be obligated until the Indian Health Service has provided a detailed spend plan, including identifying each specific project by Tribe, the estimated project cost, and the expected project completion, to the Committees on Appropriations of the House of Representatives and the Senate at least 30 days prior to distributing any funds: Provided further , That the Indian Health Service shall provide a quarterly project report to such committees: Provided further , That notwithstanding any other provision of law, funds appropriated for the planning, design, construction, renovation or expansion of health facilities for the benefit of an Indian Tribe or Tribes may be used to purchase land on which such facilities will be located: Provided further , That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. General Provisions 501. Each amount designated in this Act by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985 shall be available (or rescinded or transferred, if applicable) only if the President subsequently so designates all such amounts and transmits such designations to the Congress. This Act may be cited as the Department of the Interior, Environment, and Related Agencies Appropriations Act, 2021 .