As someone who is considering purchasing his first drift boat...I know there are marine boater safety courses; are there river safety courses even available out there?

Before I could go hunting, it was mandatory (where I grew up anyway) to take and pass a basic marksmanship course and a hunter's safety course in order to get my license.

As this is a potentially dangerous sport (drifting rivers, ESPECIALLY on the Oly Pen), I'd be a bit surprised if some type of basic river safety course isn't even offered anywhere...anyone know of one?