For a sanctioned event, the hosting club rules have to coincide with TMA defintition of a sanctioned shoot. Mainly types of firearms used. AN event is a "sponsored" event if it is ran by TMA members for members. The TMA Tree Rat shoot in Michigan which Swamp ran last year and the "Old" Northwest Frolic in Indiana which I have had the last 3 yearsare examples. The TMA provides shooting certificates for sanctioned events(not sure what else) and the sponsored events run as any rendezvous would exept thay are for TMA members and guests of such. I hope this answered your question, and I didn't miss anything, I am sure someone will be along and correct me if I did.
Nobber