Members of the Senate Commerce Committee approved legislation on Wednesday that would require the FCC and the National Telecommunications and Information Administration (NTIA) to conduct an inventory of the nation’s spectrum resources. House Energy and Commerce Committee Chairman Henry Waxman (D-CA) meanwhile introduced a companion bill that encompasses a greater range of frequencies and that would also require both agencies to identify and recommend for reallocation spectrum that is underutilized. Introduced by Senate Communications Subcommittee Chairman John Kerry (D-MA) and Senator Olympia Snowe (R-ME), the Radio Spectrum Inventory Act has been endorsed by wireless association CTIA, which said, “as the wireless industry continues to invest to meet consumers’ increasing demand for broadband services, we appreciate Senator Kerry and Snowe’s commitment to work with stakeholders to fashion a bill that identifies where the next allocation of spectrum for commercial use will come from.” While the bill covers frequency bands between 300 MHz and 3.5 GHz, lawmakers adopted an amendment that would add intentional and unlicensed radiators to the required inventory as well as contour maps that depict signal coverage and strength. The FCC and NTIA would also be required to set up “a centralized portal or website . . . to make the inventory bands of such [agencies] available to the public.” Kerry also confirmed that, at the urging of Senator Mark Warner (D-VA), committee leaders are considering adding a further amendment before the bill goes to the Senate floor that would require “measurement of spectrum use by licensees.” While resembling the Senate bill in many respects, the House measure introduced by Waxman would encompass spectrum between 225 MHz and 10 GHz and would require the FCC and NTIA to submit annual reports in which they identify “the least utilized blocks of spectrum inventories” and recommend “which, if any, of such spectrum identified” should be reallocated. In a statement accompanying the bill, Waxman declared that the measure “will complement the Obama Administration’s initiatives to provide universal, high quality broadband access for all Americans.”