StacksVerified U.S. regulatory reference

47 CFR §61.86

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
An issuing carrier may not file a supplement except to suspend or cancel a tariff publication, or to defer the effective date of pending tariff revisions. A carrier may file a supplement for the voluntary deferral of a tariff publication.