; and (6) any personnel changes. 571. Spectrum availability (a) Findings Congress makes the following findings: (1) The Spectrum Pipeline Act of 2015 ( 47 U.S.C. 921 note) requires the Secretary of Commerce to identify 30 megahertz of electromagnetic spectrum below the frequency of 3 gigahertz to be reallocated to non-Federal use, to shared Federal and non-Federal use, or to a combination thereof. (2) The Spectrum Pipeline Act of 2015 ( 47 U.S.C. 921 note) authorized the Director of the Office of Management and Budget to use amounts made available through the Spectrum Relocation Fund to make payments to Federal entities for research and development, engineering studies, economic analyses, and other activities intended to improve the efficiency and effectiveness of Federal spectrum use in order to make such spectrum available for reallocation for non-Federal use, for shared Federal and non-Federal use, or for a combination thereof. (3) The Federal Aviation Administration, in coordination with the Department of Commerce, the Department of Defense, and the Department of Homeland Security, established the Spectrum Efficient National Surveillance Radar (referred to in this section as SENSR ) Program to assess the feasibility of consolidating certain long-range, short-range, and weather radar systems in order to make available the 1300–1350 megahertz band. (4) The SENSR Program received approval and approximately $71,500,000 from Office of Management and Budget on June 2, 2017, to proceed with Phase I of the SENSR Spectrum Pipeline Plan, which will focus on requirements and concept development as well as documenting expected costs and information for all impacted Federal spectrum systems. (b) Sense of Congress It is the sense of Congress that the SENSR Program of the FAA should continue its assessment of the feasibility of making the 1300–1350 megahertz band of electromagnetic spectrum available for non-Federal use. 572. Special review relating to air space changes (a) In general Not later than 180 days after the date