You didn't mention you son's age. If he is 16 or under, he has to take the classroom course, which is offered with two options. He can take the one day classroom course, or the combination classroom and field day offering. If he is 17 or older, he can take the online course without the need for any classroom instruction. But of course, he can also take either of the classroom options if prefers classroom over online, which some people do.