and Missile Systems Center. (2) Subcontracts A prime contractor on a Air Force Space and Missile Systems Center contract may not enter into a subcontract valued in excess of $3,000,000 or 5 percent of the prime contract value with a contractor included on the watch list established under subsection (a) without the prior approval of the Commander of the Air Force Space and Missile Systems Center. (d) Request for removal from list A contractor may submit to the Commander a written request for removal from the watch list, including evidence that the contractor has resolved the issue that was the basis for inclusion on the list. (e) Rule of construction Nothing in this section shall be construed as preventing the suspension or debarment of a contractor, but inclusion on the watch list shall not be construed as a punitive measure or de facto suspension or debarment of a contractor. 1603. Presidential National Voice Conferencing System (a) Consolidation of elements Not later than one year after the date of the enactment of this Act, all program elements and funding for the Presidential National Voice Conferencing System (PNVC) shall be transferred to the Program Executive Office with responsibility for the Presidential National Voice Conferencing System. (b) Acquisition reporting Commencing not later than one year after the date of the enactment of this Act, any reporting on the acquisition of the Presidential National Voice Conferencing System shall comply with reporting guidelines for an Acquisition Category 1 (ACAT 1) system. 1604. Limitation on use of funds for Delta IV launch vehicle None of the funds authorized to be appropriated by this Act or otherwise made available for fiscal year 2018 or any fiscal year thereafter for the Air Force may be obligated 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