U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 16, 2025

All TitlesTitle 47Chapter IPart 20 - PART 20—COMMERCIAL MOBILE SERVICES
§ 20.1 - Purpose.
§ 20.2 - Other applicable rule parts.
§ 20.3 - Definitions.
§ 20.5 - Citizenship.
§ 20.6 - CMRS spectrum aggregation limit.
§§ 20.7-20.9 - §[Reserved]
§ 20.11 - Interconnection to facilities of local exchange carriers.
§ 20.12 - Resale and roaming.
§ 20.13 - State petitions for authority to regulate rates.
§ 20.15 - Requirements under Title II of the Communications Act.
§ 20.18 - [Reserved]
§ 20.19 - Hearing loss compatible wireless handsets.
§ 20.20 - Conditions applicable to provision of CMRS service by incumbent Local Exchange Carriers.
§ 20.21 - Signal boosters.
§ 20.22 - Rules governing mobile spectrum holdings.
§ 20.23 - Contraband wireless devices in correctional facilities.
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