here’s another discussion about it:
What ever happened to that @AbelRamirez guy, anyway?
“Someone” HAS said you need to be certified, though I think you meant “applicable to April 28, 2016”.
And i do not think I am alone in disagreeing with this assertion about “their” happiness for “someone to teach classes”, unless you mean in a classroom with notes and figures. “They” most certainly discourage pulling cars in and working on them “as a class”, and, unless the instructor is using a vehicle (s)he owns, is forbidden therefrom.
I’m curious to see how the “replacing a head gasket on a GM 3100” class on May 3rd, 2016, does…