Maximum Permitted Miles (MPM) refers to the maximum mileage between city pairs used for published fares, with surcharges applying if the mileage exceeds this limit. Which statement is true about MPM?

• A. It is the minimum distance used for published fares
• B. It is the maximum distance allowed within a single airline's domestic routes
• C. It is the currency conversion factor used in fare calculations
• D. It is the maximum mileage between city pairs used for published fares

Answer: (D)

MPM defines the upper distance that a published fare is built around. It sets the farthest mileage between city pairs that a single published fare covers without extra charges. If the actual distance exceeds that limit, a surcharge is added to account for the longer trip. This concept isn’t about a minimum distance, a domestic-only airline limit, or a currency factor; it’s specifically about the maximum mileage used for published fare pricing. For example, if the MPM is 4,000 miles and a trip is 4,200 miles, the fare would apply with the appropriate surcharge for exceeding the published-mileage limit.