What if a ticket originally purchased prior to December 19, 2014, was changed by the passenger on or after December 19, 2014?

If a passenger purchased a ticket before December 19, 2014, and changed the original itinerary and the ticket changed in price December 19, 2014, the carrier must treat the itinerary change as a new purchase and charge the revised September 11 Security Fee.

If however, a passenger purchased a ticket before December 19, 2014, and changed the amenities of that ticket on or after December 19, 2014, the carrier must not treat the transaction as a new purchase of air transportation and continue to collect the fee as in effect prior to December 19, 2014. Amenities include seating changes, meals or other items not related to air transportation.