47 C.F.R. § 61.172 Changes to be incorporated in tariffs of successor carrier.
Title 47 - Telecommunication
When only a portion of properties is transferred to a successor carrier, that carrier must incorporate in its tariff the rates applying locally between points on the transferred portion. Moreover, the predecessor carrier must simultaneously cancel the corresponding rates from its tariffs, and reference the FCC number of the successor carrier's tariff containing the rates that will thereafter apply.
Title 47: Telecommunication
PART 61—TARIFFS
Subpart I—Adoption of Tariffs and Other Documents of Predecessor Carriers
§ 61.172 Changes to be incorporated in tariffs of successor carrier.

