RSA 487:16-d: Draining of Water Conveyances.

I. When leaving waters of the state, a person shall drain his or her boat and other water-related equipment that holds water, including live wells and bilges.

II. Drain plugs, bailers, valves, or other devices used to control the draining of water from ballast tanks, bilges, and live wells shall be removed or opened while transporting boats and other water-related equipment, if the vessel is so equipped.

III. Commercial enterprises transporting boats for off-site storage, maintenance, or repairs, and emergency response vehicles and their related equipment are exempted from paragraphs I and II, however all such exempt commercial enterprises shall drain all water-related equipment holding water and live wells and bilges prior to transporting the equipment to another water body.