CFR › Title 14 › Part 221 › §221.16514 CFR §221.165Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkIf a carrier ceases operations without having a successor, it shall:(a)File a notice in each tariff of its own issue and cancel such tariff in its entirety.(b)Revoke all powers of attorney and concurrences which it has issued.