Do I need special permission to land at a Landing Rights Airport?
According to the FAR's 


  (2) Private aircraft. The pilots of private aircraft are required to
  secure permission to land from CBP following transmission of the
  advance notice of arrival via an electronic data interchange system
  approved by CBP, pursuant to § 122.22. Prior to departure as defined
  in § 122.22(a), from a foreign port or place, the pilot of a private
  aircraft must receive a message from CBP that landing rights have been
  granted for that aircraft at a particular airport.


This only matters if you are inbound from an out of country origin. An LRA airport is 


  Landing rights airport. A landing rights airport is any airport, other than an international airport or user fee airport, at which flights from a foreign area are given permission by Customs to land.