Why it matters

Misreading fare rules is a common cause of ADMs and unexpected penalties. Platforms that parse the rules into structured, readable form help agents quote change and refund conditions correctly. See the AI fare rules case study.

Related terms

Fare basis code

An alphanumeric code that identifies a specific airline fare and the rules attached to it. The first letter is usually the booking class; the characters that follow…

ATPCO (Airline Tariff Publishing Company)

An airline-owned organisation that collects and distributes fares and fare rules from airlines to GDSs and other systems. Most published airline fares, their rule…

Void, refund and reissue

The three ways an issued airline ticket is changed. A void cancels a ticket within a short window after issue (often the same day) so it never settles. A refund…

ADM / ACM (Agency Debit / Credit Memo)

An ADM is a charge an airline raises against a travel agency, usually through BSP, to recover money when a ticket was issued or handled against the airline's rules…

NDC (New Distribution Capability)

An IATA XML-based data standard that lets airlines distribute richer content — ancillaries, branded fares, seat maps and personalised offers — directly to…