Bill,
The LTA organizes the Loring meets. Both are in early stages of evolution, off to a great start given the obstacles that had to be overcome thanks to the efforts of many.
Currently no membership required, just entry fee or fee to spectate.
Currently using the ECTA rule book [2011 not out yet] best to get a 2010 from ECTA to get a start now. Generally very similar to SCTA book but there are differences to be aware of.
Watch the LTA site and LTA section here on this forum for updates.
Ed