I have been trying to find the definition of non federal waters in Washington and could not get a clear answer. Are federal waters the same as navigable waters? Was only looking into this to see if i need to put wn numbers on my drift boat if i run a kicker. I know the law states "To navigate, operate, employ, or moor your vessel in Washington, you must have a Washington title, registration card, and registration decals, except:
•If your vessel is a canoe, kayak, or a vessel not propelled by a motor or sail
•If your vessel is less than 16 feet in length and has a motor of 10 horsepower or less and is used on non-federal waters only
•If your vessel is properly registered by a resident of another state or country who uses Washington waters for 60 days or fewer"

But what are non federal waters????? And do i need to get wn numbers for my drift boat if i run a kicker?