49 CFR § 366.6T
Cancellation or change
November 18, 2020
A designation may be canceled or changed only by a new designation except that, where a carrier or broker ceases to be subject to §366.4T in whole or in part for 1 year, designation is no longer required and may be canceled without making another designation.
[82 FR 5303, Jan. 17, 2017]