1510.9—Collection of security service fees.

(b) Direct air carriers and foreign air carriers must collect from each passenger, to the extent provided in § 1510.5, a security service fee on air transportation sold on or after February 1, 2002. The security service fee must be based on the air travel itinerary at the time the air transportation is sold. Any changes by the passenger to the itinerary that alter the number of enplanements are subject to additional collection or refund of the security service fee by the direct air carrier or foreign air carrier as appropriate. Direct air carriers and foreign air carriers are solely liable to TSA for additional security service fees imposed because of involuntary enplanement changes to the itinerary.