; advanced research projects as may be designated and determined by the Secretary of Defense, pursuant to law; maintenance, rehabilitation, lease, and operation of facilities and equipment, $24,049,621,000, to remain available for obligation until September 30, 2020. Operational test and evaluation, defense For expenses, not otherwise provided for, necessary for the independent activities of the Director, Operational Test and Evaluation, in the direction and supervision of operational test and evaluation, including initial operational test and evaluation which is conducted prior to, and in support of, production decisions; joint operational testing and evaluation; and administrative expenses in connection therewith, $381,009,000, to remain available for obligation until September 30, 2020. V revolving and management funds Defense working capital funds For the Defense Working Capital Funds, $1,641,115,000. VI Other department of defense programs Defense Health Program For expenses, not otherwise provided for, for medical and health care programs of the Department of Defense as authorized by law, $34,135,992,000; of which $31,588,995,000 shall be for operation and maintenance, of which not to exceed one percent shall remain available for obligation until September 30, 2020, and of which up to $15,152,801,000 may be available for contracts entered into under the TRICARE program; of which $873,160,000, to remain available for obligation until September 30, 2021, shall be for procurement