Part 90 — Private Land Mobile Radio Services
Current through Oct 13, 2026
Authority: 47 U.S.C. 154(i), 161, 303(g), 303(r), 332(c)(7), 1401-1473
Source: 43 FR 54791, Nov. 22, 1978, unless otherwise noted.
Sections
- § 90.1 [Reserved]
- § 90.5 Other applicable rule parts.
- § 90.7 Definitions.
- § 90.15 Scope.
- § 90.16 Public Safety National Plan.
- § 90.19 Nationwide Public Safety Broadband Network.
- § 90.20 Public Safety Pool.
- § 90.22 Paging operations.
- § 90.25 Non-Federal use of the Federal interoperability channels.
- § 90.31 [Reserved]
- § 90.33 General eligibility.
- § 90.35 Industrial/Business Pool.
- § 90.101 [Reserved]
- § 90.103 Radiolocation Service.
- § 90.111 [Reserved]
- § 90.115 Foreign government and alien eligibility.
- § 90.119 Application requirements.
- § 90.121 [Reserved]
- § 90.127 Submission and filing of applications.
- § 90.129 Supplemental information to be routinely submitted with applications.
- § 90.135 Modification of license.
- § 90.137 Applications for operation at temporary locations.
- § 90.138 Applications for itinerant frequencies.
- § 90.149 License term.
- § 90.155 Time in which station must be placed in operation.
- § 90.159 Temporary and conditional permits.
- § 90.165 Procedures for mutually exclusive applications.
- § 90.168 Equal employment opportunities.
- § 90.169 Construction prior to grant of application.
- § 90.171 [Reserved]
- § 90.173 Policies governing the assignment of frequencies.
- § 90.175 Frequency coordinator requirements.
- § 90.176 Coordinator notification requirements on frequencies below 512 MHz, at 769-775/799-805 MHz, or at 1427-1432 MHz.
- § 90.179 Shared use of radio stations.
- § 90.185 Multiple licensing of radio transmitting equipment in the mobile radio service.
- § 90.187 Trunking in the bands between 150 and 512 MHz.
- § 90.201 [Reserved]
- § 90.203 Certification required.
- § 90.205 Power and antenna height limits.
- § 90.207 Types of emissions.
- § 90.209 Bandwidth limitations.
- § 90.210 Emission masks.
- § 90.212 Provisions relating to the use of scrambling devices and digital voice modulation.
- § 90.213 Frequency stability.
- § 90.214 Transient frequency behavior.
- § 90.215 Transmitter measurements.
- § 90.217 Exemption from technical standards.
- § 90.219 Use of signal boosters.
- § 90.221 Adjacent channel power limits.
- § 90.223 RF exposure.
- § 90.231 [Reserved]
- § 90.233 Base/mobile non-voice operations.
- § 90.235 Secondary fixed signaling operations.
- § 90.237 Interim provisions for operation of radioteleprinter and radiofacsimile devices.
- § 90.238 Telemetry operations.
- § 90.239 [Reserved]
- § 90.241 Radio call box operations.
- § 90.242 Travelers' information stations.
- § 90.243 Mobile relay stations.
- § 90.245 Fixed relay stations.
- § 90.247 Mobile repeater stations.
- § 90.248 Wildlife and ocean buoy tracking.
- § 90.249 Control stations.
- § 90.250 Meteor burst communications.
- § 90.251 [Reserved]
- § 90.253 Use of frequency 5167.5 kHz.
- § 90.255 [Reserved]
- § 90.257 Assignment and use of frequencies in the band 72-76 MHz.
- § 90.259 Assignment and use of frequencies in the bands 216-220 MHz and 1427-1432 MHz.
- § 90.261 Assignment and use of the frequencies in the band 450-470 MHz for fixed operations.
- § 90.263 Substitution of frequencies below 25 MHz.
- § 90.264 Disaster communications between 2 and 10 MHz.
- § 90.265 Assignment and use of frequencies in the bands allocated for Federal use.
- § 90.266 Long distance communications on frequencies below 25 MHz.
- § 90.267 Assignment and use of frequencies in the 450-470 MHz band for low power use.
- § 90.269 Use of frequencies for self-powered vehicle detectors.
- § 90.273 Availability and use of frequencies in the 421-430 MHz band.
- § 90.275 [Reserved]
- § 90.279 Power limitations applicable to the 421-430 MHz band.
- § 90.281 Restrictions on operational fixed stations in the 421-430 MHz band.
- § 90.283 [Reserved]
- § 90.301 [Reserved]
- § 90.303 Availability of frequencies.
- § 90.305 Location of stations.
- § 90.307 Protection criteria.
- § 90.309 Tables and figures.
- § 90.311 Frequencies.
- § 90.313 Frequency loading criteria.
- § 90.315 Special provisions governing use of frequencies in the 476-494 MHz band (TV Channels 15, 16, 17) in the Southern Louisiana-Texas Offshore Zone.
- § 90.317 Fixed ancillary signaling and data transmissions.
- § 90.350 Scope.
- § 90.351 Location and Monitoring Service.
- § 90.353 LMS operations in the 902-928 MHz band.
- § 90.355 LMS operations below 512 MHz.
- § 90.357 Frequencies for LMS systems in the 902-928 MHz band.
- § 90.359 Field strength limits for EA-licensed LMS systems.
- § 90.361 Interference from part 15 and Amateur operations.
- §§ 90.363-90.365 [Reserved]
- § 90.370 Permitted frequencies.
- § 90.371 Dedicated short range communications service.
- § 90.372 DSRCS notification requirement.
- § 90.373 Eligibility in the DSRCS.
- § 90.375 RSU license areas, communication zones and registrations
- § 90.377 Frequencies available; maximum EIRP and antenna height, and priority communications.
- § 90.379 Technical standards for Roadside Units.
- § 90.383 RSU sites near the U.S./Canada or U.S./Mexico border.
- § 90.384 Incorporation by reference.
- § 90.386 Permitted frequencies.
- § 90.387 Cellular Vehicle to Everything (C-V2X).
- § 90.388 Eligibility.
- § 90.389 RSU license areas and registrations.
- § 90.390 Channels and priority communications.
- § 90.391 Maximum EIRP and antenna height.
- § 90.392 C-V2X emissions limits.
- § 90.393 RSU sites near the U.S./Canada or U.S./Mexico border.
- § 90.401 [Reserved]
- § 90.403 General operating requirements.
- § 90.405 Permissible communications.
- § 90.407 Emergency communications.
- § 90.411 Civil defense communications.
- § 90.415 Prohibited uses.
- § 90.417 Interstation communication.
- § 90.419 Points of communication.
- § 90.421 Operation of mobile station units not under the control of the licensee.
- § 90.423 Operation on board aircraft.
- § 90.425 Station identification.
- § 90.427 Precautions against unauthorized operation.
- § 90.429 Control point and dispatch point requirements.
- § 90.431 Unattended operation.
- § 90.433 Operator requirements.
- § 90.437 Posting station licenses.
- § 90.439 Inspection of stations.
- § 90.441 [Reserved]
- § 90.443 Content of station records.
- § 90.445 [Reserved]
- § 90.447 Retention of station records.
- § 90.460 [Reserved]
- § 90.461 Direct and remote control of transmitters.
- § 90.463 Transmitter control points.
- § 90.465 Control of systems of communication.
- § 90.467 Dispatch points.
- § 90.469 Unattended operation.
- §§ 90.471-90.475 [Reserved]
- § 90.476 Interconnection of fixed stations and certain mobile stations.
- § 90.477 Interconnected systems.
- § 90.483 Permissible methods and requirements of interconnecting private and public systems of communications.
- § 90.490 One-way paging operations in the private services.
- § 90.492 [Reserved]
- § 90.493 Paging operations on exclusive channels in the 929-930 MHz band.
- § 90.494 Paging operations on shared channels in the 929-930 MHz band.
- § 90.521 Scope.
- § 90.523 Eligibility.
- § 90.525 Administration of interoperability channels.
- § 90.527 Regional plan requirements.
- § 90.529 State License.
- § 90.531 Band plan.
- § 90.532 Licensing of the 758-769 MHz and 788-799 MHz bands; first responder network authority license and renewal.
- § 90.533 Transmitting sites near the U.S./Canada or U.S./Mexico border.
- § 90.535 Modulation and spectrum usage efficiency requirements.
- § 90.537 Trunking requirement.
- § 90.539 Frequency stability.
- § 90.541 Transmitting power and antenna height limits.
- § 90.542 Broadband transmitting power limits.
- § 90.543 Emission limitations.
- § 90.547 Narrowband Interoperability channel capability requirement.
- § 90.548 Interoperability Technical Standards.
- § 90.549 Transmitter certification.
- § 90.551 Construction requirements.
- § 90.553 Encryption.
- § 90.555 Information exchange.
- § 90.557 Secondary fixed signaling operations.
- § 90.559 Station Identification.
- § 90.601 Scope.
- § 90.603 Eligibility.
- §§ 90.605-90.607 [Reserved]
- § 90.609 Special limitations on amendment of applications for assignment or transfer of authorizations for radio systems above 800 MHz.
- § 90.613 Frequencies available.
- § 90.614 Segments of the 806-824/851-869 MHz band for non-border areas.
- § 90.615 Individual channels available in the General Category in 806-824/851-869 MHz band.
- § 90.616 896-897.5/935-936.5 MHz and 900.5-901/939.5-940 MHz narrowband segments.
- § 90.617 Frequencies in the 809.750-824/854.750-869 MHz, and 896-901/935-940 MHz bands available for trunked, conventional or cellular system use in non-border areas.
- § 90.619 Operations within the U.S./Mexico and U.S./Canada border areas.
- § 90.621 Selection and assignment of frequencies.
- § 90.623 Limitations on the number of frequencies assignable for conventional systems.
- § 90.625 Other criteria to be applied in assigning channels for use in conventional systems of communication.
- § 90.627 Limitation on the number of frequency pairs that may be assignable for trunked systems and on the number of trunked systems.
- § 90.629 Extended implementation period.
- § 90.631 Trunked systems loading, construction and authorization requirements.
- § 90.633 Conventional systems loading requirements.
- § 90.635 Limitations on power and antenna height.
- § 90.637 Restrictions on operational fixed stations.
- § 90.645 Permissible operations.
- § 90.647 Station identification.
- § 90.651 [Reserved]
- § 90.655 Special licensing requirements for Specialized Mobile Radio systems.
- § 90.656 Responsibilities of base station licensees of Specialized Mobile Radio systems.
- § 90.661 MTA-based SMR service areas.
- § 90.663 MTA-based SMR system operations.
- § 90.665 Authorization, construction and implementation of MTA licenses.
- § 90.667 Grandfathering provisions for incumbent licensees.
- § 90.669 Emission limits.
- § 90.671 Field strength limits.
- § 90.672 Unacceptable interference to non-cellular 800 MHz licensees from 800 MHz cellular systems or part 22 Cellular Radiotelephone systems, and within the 900 MHz narrowband segments, and to narrowband 900 MHz licensees from 900 MHz broadband licensees.
- § 90.673 Obligation to abate unacceptable interference.
- § 90.674 Interference resolution procedures.
- § 90.675 Information exchange.
- §§ 90.676-90.677 [Reserved]
- § 90.681 EA-based SMR service areas.
- § 90.683 EA-based SMR system operations.
- § 90.685 Authorization, construction and implementation of EA licenses.
- § 90.687 Special provisions regarding assignments and transfers of authorizations for incumbent SMR licensees in the 809-824/854-869 MHz band.
- § 90.689 Field strength limits.
- § 90.691 Emission mask requirements for EA-based systems.
- § 90.693 Grandfathering provisions for incumbent licensees.
- § 90.699 Transition of the upper 200 channels in the 800 MHz band to EA licensing.
- § 90.701 Scope.
- § 90.703 Eligibility.
- § 90.705 Forms to be used.
- § 90.709 Special limitations on amendment of applications and on assignment or transfer of authorizations licensed under this subpart.
- § 90.711 Processing of Phase II applications.
- § 90.713 Entry criteria.
- § 90.715 Frequencies available.
- § 90.717 Channels available for nationwide systems in the 220-222 MHz band.
- § 90.719 Individual channels available for assignment in the 220-222 MHz band.
- § 90.720 Channels available for public safety/mutual aid.
- § 90.721 Other channels available for non-nationwide systems in the 220-222 MHz band.
- § 90.723 Selection and assignment of frequencies.
- § 90.725 Construction requirements for Phase I licensees.
- § 90.727 Extended implementation schedules for Phase I licensees.
- § 90.729 Limitations on power and antenna height.
- § 90.733 Permissible operations.
- § 90.735 Station identification.
- § 90.739 [Reserved]
- § 90.741 Urban areas for Phase I nationwide systems.
- § 90.743 [Reserved]
- § 90.745 Phase I licensee service areas.
- § 90.751 Minor modifications of Phase I, non-nationwide licenses.
- § 90.753 Conditions of license modification.
- § 90.757 Construction requirements.
- § 90.761 EA and Regional licenses.
- § 90.763 EA, Regional and nationwide system operations.
- § 90.765 Licenses term for Phase II licenses.
- § 90.767 Construction and implementation of EA and Regional licenses.
- § 90.769 Construction and implementation of Phase II nationwide licenses.
- § 90.771 Field strength limits.
- § 90.901 800 MHz SMR spectrum subject to competitive bidding.
- §§ 90.902-90.913 [Reserved]
- § 90.1001 220 MHz service subject to competitive bidding.
- §§ 90.1003-90.1015 [Reserved]
- § 90.1017 [Reserved]
- § 90.1019 Eligibility for partitioned licenses.
- §§ 90.1021-90.1025 [Reserved]
- § 90.1101 Location and Monitoring Service subject to competitive bidding.
- § 90.1103 [Reserved]
- § 90.1201 Scope.
- § 90.1203 Eligibility.
- § 90.1205 Permissible operations.
- § 90.1207 Licensing.
- § 90.1209 Policies governing the use of the 4940-4990 MHz band.
- § 90.1211 Regional plan.
- § 90.1213 Band plan.
- § 90.1215 Power limits.
- § 90.1217 4.9 GHz Band Manager.