All seaplanes and motorized watercraft (including personal watercraft) operating on inland waters must display a Lake and River Protection Sticker on each side of the bow.
The stickers are required for motorized watercraft (including personal watercraft) not registered in the State of Maine. For boats registered in Maine, the lake and river protection stickers are part of the boat registration sticker.
You can purchase these in advance on-line from the Department of Inland Fisheries and Wildlife
They are sent in the mail so you have to plan ahead a little to buy them this way.
They may also be purchased locally at the Fayette Country Store, the Wayne General Store and the Mt. Vernon Country Store.