; and (2) in subsection (c)(1)(B), by striking July 1, 2024 and inserting July 1, 2023 . 6. Modernizing mid-band spectrum (a) In general (1) Spectrum identification Not later than December 31, 2019, the Commission, in consultation with the NTIA, shall identify up to 500 megahertz of additional spectrum in the frequencies between 3700 megahertz and 4200 megahertz to make available for commercial licensed use. (2) Spectrum auction Not later than December 31, 2022, the Commission shall complete a system of competitive bidding for the use of spectrum identified under paragraph (1). (b) Rule making on the unlicensed use of the frequency band between 5925 megahertz and 7125 megahertz Not later than 180 days after the date of enactment of this Act, the Commission, in consultation with the NTIA, shall issue a notice of proposed rule making with respect to creating opportunities for the unlicensed use of spectrum in the frequencies between 5925 and 7125 megahertz without causing harmful interference with any incumbents in that band. 7. Rural set-aside (a) In general Notwithstanding section 309(j)(8) of the Communications Act of 1934 ( 47 U.S.C. 309(j)(8) ), the Commission shall allocate 10 percent of the proceeds from each system of competitive bidding conducted under this Act for the deployment of wireless infrastructure in areas that the Commission has determined are underserved or unserved with respect to wireless broadband Internet access service. (b) Limitations No amounts allocated under subsection (a) may be combined with amounts that are used to fund any other program that is in existence on the date on which the allocation is made, including any program established under section 254 of the Communications Act of 1934 ( 47 U.S.C. 254 ). 8. Special rules With respect to any frequency band described in this Act (in this section referred to as the covered band ), if the relocation of an incumbent from the covered band to another equivalent frequency band is not possible, and if the Commission determines that no