Adjustment of Passenger Civil Aviation Security Service Fee

The Transportation Security Administration (TSA) is issuing this interim final rule (IFR) to address a statutory change affecting the IFR published on June 20, 2014 (2014 IFR), which implemented the passenger civil aviation security service fee (security service fee) increase mandated by the Bipartisan Budget Act of 2013. This IFR conforms TSA's regulations to statutory amendments enacted since publication of the 2014 IFR. These amendments impose a round-trip limitation on the security service fee. All other aspects of the regulations, including those made by the 2014 IFR and provisions unchanged by this rule, remain in effect. TSA is also requesting comments on added definitions related to imposition of a round-trip limitation. TSA is not soliciting comments with respect to any other issues concerning the 2014 IFR, except to the extent affected by this rule, as the deadline for such comments has expired.