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In 2008, the purchase of a new sticker for owners of Maine-registered watercraft was automatically combined with the watercraft registration fee. The sticker, which now reads "Stop Aquatic Hitchhikers -- Preserve Maine Waters" and is physically attached to the Maine watercraft registration, has been required since 2002 for all motorized watercraft on inland waters. Owners of non-Maine registered boats will continue to be required to purchase and affix a separate nonresident sticker. 

The emerald ash borer was found in northern Aroostook County in May 2018, western York County in September 2018, and Cumberland County in September 2019. See the current quarantine areas in Maine. If you suspect emerald ash borer, please use the Emerald Ash Borer (EAB) Report Form, or call: 207-287-3891.

To reduce the spread of aquatic invasive species in Maine, a law was passed by the Maine Legislature (effective June 16, 2023) that requires boaters to take specific actions to encourage water to drain from their watercraft prior to entering a water body or leaving a launch site. Aquatic invasive species are any fish, wildlife, or plant species that spreads to a water body where they do not naturally occur. These species are often transferred to new locations on watercraft, watercraft trailers, and other equipment associated with water recreation, and they impact the health of our waters, fish, and wildlife.

See also: Help us Keep it Maine: Protect our Waters from Aquatic Invasive Species

Moving firewood can transport exotic insects & diseases that pose a serious threat to our forests. Don't transport firewood -- BURN IT WHERE YOU BUY IT!