Introduction to Proration Proration Terminologies Identifying STBP and ATBP in a Ticket Types of Proration SRP Proration Excercises on SRP SRP with Equavalant Fare Paid and Exercises Multilateral and Bilateral Prorate agreement Provisos application and reading the rules Calucation of provisos Limitation to Provisos Prorating the Ticket and Excercises Proration of Special Cases like Q charge Stopover Charge Infant and RTW Mandatory and Additonal Discounts Proration of Voluntary Rerouting and Involunatary Rerouting