Code of Federal Regulations > Title 47 > Chapter I > Part 51 - PART 51—INTERCONNECTION

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 51.1 - § 51.5] - Subpart A—General Information

Subpart B [§ 51.100 - § 51.100] - Subpart B—Telecommunications Carriers

Subpart C [§ 51.201 - § 51.233] - Subpart C—Obligations of All Local Exchange Carriers

Subpart D [§ 51.301 - § 51.335] - Subpart D—Additional Obligations of Incumbent Local Exchange Carriers

Subpart E [§ 51.401 - § 51.405] - Subpart E—Exemptions, Suspensions, and Modifications of Requirements of Section 251 of the Act

Subpart F [§ 51.501 - § 51.515] - Subpart F—Pricing of Elements

Subpart G [§ 51.601 - § 51.617] - Subpart G—Resale

Subpart H [§ 51.700 - § 51.717] - Subpart H—Reciprocal Compensation for Transport and Termination of Telecommunications Traffic

Subpart I [§ 51.801 - § 51.809] - Subpart I—Procedures for Implementation of Section 252 of the Act

Subpart J [§ 51.901 - § 51.919] - Subpart J—Transitional Access Service Pricing