I was going through the fliash cards and the answer to one of the question was that all garage receptacles be at least 40 inches from the floor. This seems way to high.I Thought 18 inch was the minimum according to the NEC. Just needing clarification. Thanks
If you’re referring to a dwelling garage there is no minimum. Commercial repair garages have an 18" minimum because the area below 18" is considered a classified location if not ventilated.