; or (C) any other natural or human built structure that affects a weather radar system. 202. Next generation radar (a) In general The Under Secretary shall develop a plan to replace the Next Generation Weather Radar of the National Weather Service ( NEXRAD ) system in existence as of the date of the enactment of this section. (b) Procurement deadline The Under Secretary shall take such actions as may be necessary to ensure the replacement described in subsection (a) is completed by not later than September 30, 2040. (c) Elements The plan developed pursuant to subsection (a) shall include the following: (1) Estimates of quantifiable improvements in radar performance and service delivery, including coverage and accuracy, to be made from replacement of the NEXRAD system referred to in such subsection. (2) Development of a digital phased array radar test article designed to test and determine the specifications and requirements for such replacement. (3) Establishment of a weather surveillance radar testbed for the following: (A) Evaluation of commercial radars with the potential to replace or supplement the NEXRAD system. (B) Providing technical assistance for commercial replacement or supplemental radars, including data void filling radars in regions where geographical topography prevents full utilization of conventional systems. (4) Consultation and input solicited from meteorologists, emergency managers, and public safety officials regarding the specifications and requirements for the replacement of the NEXRAD system referred in such subsection. (5) Prioritized locations for initial deployment of the replacement system described in subsection (a) that will replace the NEXRAD system. (6) Expected locations of such replacement system described in subsection (a), including sites located more than 75 miles away from an existing NEXRAD station and additional appropriate locations. (d) Radar-as-a-Service (1) In general In order to supplement data voids in radar coverage in existence as of the date of the enactment of