A '''fare basis code''' (often just referred to as a fare basis) is an alpha or '''FBC'''alpha-numeric specifiescode used by airlines to identify a fare type and allow airline staff and travel agents to find the rules ofapplicable anto airline'sthat fare. Fare codes starts with a single letter, called a booking code, representing the type of ticket and fare, followed by optional letters and digits, representing a specific set of fare rules, for instance how many days in advance the ticket needs to be booked, corporate discounts, or other special promotional elements.<ref>{{cite book|first=Todd, G., Rice, S|author=Gorham, G|year=2001|title=Travel Perspectives: A Guide to Becoming a Travel Professional|publisher=Thomson Delmar Learning}}</ref>
