{"data":{"id":"us/47-cfr-90.311","jurisdiction":"us","citation":"47 CFR 90.311","heading":"Frequencies.","body":"(a) Except as provided for in § 90.315 and except for those frequencies allocated to services in part 22 of this chapter (see §§ 22.591, 22.621, 22.651, and 22.1007 of this chapter) the following frequencies in the band 470-512 MHz may be assigned as indicated in the table below. The first and last assignable frequencies are shown. Assignable frequencies occur in increments of 6.25 kHz. The separation between base and mobile transmit frequencies is 3 MHz for two frequency operation.\nChannel Assignment Urbanized Area General access pool\nBase and mobile Mobile\n14 Boston, MA Chicago, IL Cleveland, OH Miami, FL New York/N.E. NJ Pittsburgh, PA 470.30625 to 472.99375 473.30625 to 475.99375\nLos Angeles, CA 470.05625 to 472.99375 473.05625 to 475.99375\n15 Chicago, IL Cleveland, OH Detroit, MI New York/N.E. NJ 476.30625 to 478.99375 479.30625 to 481.99375\n16 Boston, MA Dallas/Fort Worth, TX Detroit, MI San Francisco/Oakland, CA 482.30625 to 484.99375 485.30625 to 487.99375\nLos Angeles, CA (Use is restricted to Public Safety Pool eligibles) 482.00625 to 484.99375 485.00625 to 487.99375\n17 Houston, TX San Francisco/Oakland, CA Washington, DC/MD/VA 488.30625 to 490.99375 491.30625 to 493.99375\n18 Pittsburgh, PA Washington, DC/MD/VA 494.30625 to 496.99375 497.30625 to 499.99375\n19 Philadelphia, PA 500.30625 to 502.99375 503.30625 to 505.99375\n20 Los Angeles, CA 506.13125 to 508.99375 509.13125 to 511.99375\nPhiladelphia, PA 506.30625 to 508.99375 509.30625 to 511.99375\n(1) Channel availability in the General Access Pool in any of the urbanized areas referred to in the table depends on whether that channel is presently assigned to one of the following categories of users:\n(i) Public safety (as defined in § 90.20(a));\n(ii) Power and telephone maintenance licensees (as defined in § 90.7);\n(iii) Special industrial licensees (as defined in § 90.7);\n(iv) Business licensees (as defined in § 90.35(a));\n(v) Petroleum, forest products, and manufacturers licensees (as defined in § 90.7);\n(vi) Railroad, motor carrier, and automobile emergency licensees (as defined in § 90.7); and\n(vii) Taxicab licensees (as defined in § 90.7).\n(2) If assigned, subsequent authorizations will only be granted to users from the same category. If unassigned, or should a channel subsequently become unassigned, it will be treated as available in the General Access Pool.\n(3) Normally, each channel should be substantially loaded in accordance with the standards set out in § 90.313.\n(4) The following frequencies will be authorized a maximum bandwidth of 6 kHz.\nChannel Frequency\n14 470.30625\n475.99375\n15 476.30625\n481.99375\n16 482.30625\n487.99375\n17 488.30625\n493.99375\n18 494.30625\n499.99375\n19 500.30625\n505.99375\n20 506.30625\n511.99375\n(b) [Reserved]","path":["Title 47—Telecommunication","CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION","SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES","PART 90—PRIVATE LAND MOBILE RADIO SERVICES","Subpart L—Authorization in the Band 470-512 MHz (UHF-TV Sharing)"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-47.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:28Z","sha256":"2813147cdf78226fe2b79f7990462ae35e494790ff83752d91902347dea8d457","source_id":"us-cfr","stale":true,"prev":"us/47-cfr-90.309","next":"us/47-cfr-90.313"},"notice":"GroundRules: Original legal text. Not legal advice."}