Here is a link to the courses and curriculum for the American Canoe Association SUP instructor training: http://www.americancanoe.org/Courses_SUP
I am reading through the curriculum just to learn more about the sport, and I am also interested in canoeing and kayaking, and the ACA has information on courses and certification for many other types of craft, and conditions, including surf, rivers by class, etc. I will post any information or further steps I take toward reaching the SUP instructor requirements.
Here is a photo of some people on SUPs in Lake Superior by the photographer Aaron Peterson. You can find more of his photos at Aaronpeterson.net.
CDL A training-programs