14 CFR §221.161
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
At the same time that the adoption notice is issued, posted, and filed pursuant to § 221.160, the adopting carrier shall issue, post and file with the Department a notice in each effective tariff issued by the former carrier providing specific notice of the adoption in a manner authorized by the Office of International Aviation and which shall contain no matter other than that authorized.