In aircargo: a carrier who participates in a tariff and applies the rules and regulations of that tariff, as well as rates, etc.
a carrier that has and agreement with the US Immigration authorities to carry visitors into the US visa free
A transportation line which is a party, under concurrence, to a tariff or contract issued by another transportation line or agency.
A carrier participating in a tariff and who therefore applies the rates, charges, routing and regulations of the tariff. A carrier over whose air routes one or more sections of carriage under the Air Waybill is undertaken or performed (air cargo).
A transportation line that is a party, under concurrence, to a tariff issued by another transportation line or by a tariff's publishing agent.