Each September through November, thousands of volunteers throughout Massachusetts turn out for COASTSWEEP—the statewide coastal cleanup sponsored by the Massachusetts Office of Coastal Zone Management (CZM). COASTSWEEP is part of the International Coastal Cleanup organized by Ocean Conservancy in Washington, DC. Volunteers from all over the world collect marine debris—trash, fishing line, and any other human-made items—and record what they find. This information is then analyzed and used to identify sources of marine debris and develop education and policy initiatives to help reduce it.

To volunteer for an event, organize your own cleanup, or learn more about COASTSWEEP, see the following links:

You can also become a friend of COASTSWEEP on Facebook or follow COASTSWEEP on Twitter and Instagram.

Major Sponsors of COASTSWEEP 2017

Massachusetts Office of Coastal Zone Management

Executive Office of Energy and Environmental Affairs

Department of Conservation and Recreation


National Oceanic and Atmospheric Administration

Ocean Conservancy