to maintain infrastructure, system engineering, critical skills, base and range support, depreciation, or sustainment commodities for the Delta IV launch vehicle until the date on which the Secretary of the Air Force submits to the congressional defense committees a certification that the Air Force plans to launch a satellite procured by the Air Force on a Delta IV launch vehicle during the 3-year period beginning on the date of the certification. 1605. Policy of the United States with respect to classification of space as a combat domain (a) In general It is the policy of the United States to develop, produce, field, and maintain an integrated system of assets in response to the increasingly contested nature of the space operating domain to— (1) ensure the resiliency of capabilities at every level of orbit in space