erating in the 3.5 GHz band, including radar services. These users will be protected from harmful interference from Priority Access and General Authorized Access users. The Priority Access tier consists of Priority Access Licenses (PALs) that will be assigned using competitive bidding within the 3550-3650 MHz portion of the band. Each PAL is defined as a 4.6 Shared Band Table 4.2 3GPP frequency variants [5, 6]. Operating band Uplink Downlink Duplex 1920-1980 MHz 2110-2170 MHz 1850-1910 MHz 1930-1990 MHz 1710-1785 MHz 1805-1880 MHz 824-849 MHz 869-894 MHz 2500-2570 MHz 2620-2690 MHz 880-915 MHz 925-960 MHz 699-716 MHz 729-746 MHz 788-798 MHz 758-768 MHz 815-830 MHz 860-875 MHz 832-862 MHz 791-821 MHz 1850-1915 MHz 1930-1995 MHz 703-748 MHz 758-803 MHz 717-728 MHz 2305-2315 MHz 2350-2360 MHz 2010-2025 MHz 2010-2025 MHz 2570-2620 MHz 2570-2620 MHz 1880-1920 MHz 1880-1920 MHz 2300-2400 MHz 2300-2400 MHz 2496-2690 MHz 2496-2690 MHz 3550-3700 MHz 3550-3700 MHz 1432-1517 MHz 1432-1517 MHz 1427-1432 MHz 1427-1432 MHz 1710-1780 MHz 2110-2200 MHz 1695-1710 MHz 1995-2020 MHz 663-698 MHz 617-652 MHz 1427-1470 MHz 1475-1518 MHz 1432-1517 MHz 1427-1432 MHz 3300-4200 MHz 3300-4200 MHz 3300-3800 MHz 3300-3800 MHz 4400-5000 MHz 4400-5000 MHz 1710-1785 MHz 880-915 MHz 832-862 MHz 703-748 MHz 1920-1980 MHz 1710-1780 MHz 6 500-29 . 500 MHz 26 500-29 ! 500 MHz 24 250-27 500 MHz 24 250-27 500 MHz 37 000-40 000 MHz 37 000-40 0 000 MHz 27 500-28 350 MHz 27 500-28 350 MHz 4 Spectrum non-renewable authorization to use a 10 MHz channel in a single census tract for three years. Up to seven total PALs may be assigned in any given census tract with up to four PALs going to any single applicant. Applicants may acquire up to two consecutive PAL terms in any given license area during the first auction. The General Authorized Access tier is licensed by rule to permit open, flexible access to the band for the widest possible group of potential users. General Authorized Access users are permitted to use any portion of the 3550-3700 MHz band not ass