; of which $31,735,923,000 (increased by $2,000,000) (increased by $5,000,000) shall be for operation and maintenance, of which not to exceed one percent shall remain available for obligation until September 30, 2019, and of which up to $15,349,700,000 may be available for contracts entered into under the TRICARE program; of which $895,328,000, to remain available for obligation until September 30, 2020, shall be for procurement