Jack,
They have in the past. Some what of a reorganization is currently underway with the latest changes in venue and leadership. Indications are that more specific info on the coming season will be coming our way sometime after Jan 1st.
ECTA and LTA rules and classes are very similar to, but not exactly the same as, SCTA. There are many subtle differences between all 3, it helps to have all 3 in hand for prep and participating.
Ed