; of which $819,950,000 shall be available until September 30, 2020: Provided , That of the amounts provided under this heading, $708,000,000 is for establishing and operating migrant care and processing facilities, $111,950,000 is for consumables and medical care, $35,000,000 is for transportation, $110,481,000 is for temporary duty and overtime costs including reimbursements, and $50,000,000 is for mission support data systems and analysis: 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. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For an additional amount for Procurement, Construction, and Improvements for migrant care and processing facilities, $85,000,000, to remain available until September 30, 2023: Provided , 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. U.S. Immigration and customs enforcement OPERATIONS AND SUPPORT For an additional amount for Operations and Support for necessary expenses to respond to the significant rise in aliens at the southwest border and related activities, $208,945,000: Provided , That of the amounts provided under this heading, $35,943,000 is for transportation of unaccompanied alien children, $11,981,000 is for detainee transportation for medical needs, court proceedings, or relocation from U.S. Customs and Border Protection custody, $20,000,000 is for alternatives to detention, $45,000,000 is for detainee medical care, $69,735,000 is for temporary duty, overtime, and other on-board personnel costs including reimbursements, $5,000,000 is for the Office of Professional Responsibility for background investigations and facility inspections, and $21,286,000 is for Homeland Security Investigations human trafficking investigations: Provided further , That such amount is designated by the