ARC is the Airlines Reporting Corporation - oversees the tracking of payments from Travel agency to airline, upon issuance of tickets; created by the air carriers
Other definition:
ARC is the US-based Airlines Reporting Corporation oversees the tracking of payments from travel agencies to airlines, among many other things.
Other definition:
ARC (Airlines Reporting Corp.) is an airline-owned corporation which accredits travel agents and sets regulation governing airline-agency relations.
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