Pretty much need a permit.. http://fishandboat.com/faqregt.htm.. I'm guessing unpowered unless you put a motor on it.
Also...On Fish & Boat Commission lakes, inflatable boats must be seven or more feet in length, be constructed of durable corded fabric reinforced with cloth and coated and have at least two separate buoyancy chambers, excluding inflatable flooring or bottom. (fishing handbook property rules)
“Would it save you a lot of time if I just gave up and went mad now?” Douglas Adams