Massachusetts No Discharge Zone (NDZ)

Massachusetts Statewide
No Discharge Zone.
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Boat sewage can contain bacteria and viruses, nutrients, and chemicals that can be harmful to water quality and public health. No Discharge Zones, or NDZs, are designated bodies of water where the discharge of all boat sewage, whether treated or not, is prohibited. In 2014, the U.S. Environmental Protection Agency (EPA) approved the state’s designation of all of Massachusetts waters as an NDZ—capping 22 years of extensive work by the Massachusetts Office of Coastal Zone Management (CZM) and coastal communities and their partners to ensure the necessary waste pumpout facilities are available for boaters to use.

This website includes information on:

For additional information on the statewide NDZ designation for Massachusetts, see the Executive Office of Energy and Environmental Affairs press release. For information on clean boating, see: