Traditionally, a CJA run would only include Jeeps, mostly members but non-members could join the run as long as they drove Jeeps or were passengers in Jeeps. They had to have minimum equipment - tow points front and rear, tow strap, good tires, CB radio (often overlooked). If food was provided a $3 fee was charged to non-members.
Open runs ( not labelled a CJA run ) include all persons and all rigs, minimum equipment still required - often overlooked ie: no rear tow point or no CB radio - though having both will make your life more enjoyable :wink: .
I assume this info still applies, correct me if I'm wrong.