not really sure that a pfd is required in a kayak as the kayak will float making flotation to kling to,however if you have a good roll you won't need to sweat it. Most fishing type kayaks I've seen are so wide and flat bottomed kinda wonder how you would ever flip one unless you were in waters that those kinda kayaks shouldn't be in. Don't believe boating regultions cover these types of boats. I think boating regulations only cover mechanical propelled vessels. Arm strong powered ones are a differant class. I could be wrong?