Renewable Energy

Planning for sustainable and compatible wind power in offshore waters.

Water Quality

Advancing regional-scale efforts for healthy, clean ocean waters

Marine Habitats

Enhancing management of ocean ecosystems that extend across state borders

Climate Change Adaptation

Understanding impacts on marine ecosystems, coastal communities and economies



MARCO is the Mid-Atlantic Regional Council on the Ocean, formed in 2009 by a governors’ agreement among New York, New Jersey, Delaware, Maryland, and Virginia.


MARCO Partnership Opportunities


MARCO’s 2022 – 2024 Work Plan

Mid-Atlantic Ocean Data Portal


The Portal is an ocean planning resource center featuring the Marine Planner, an interactive mapping tool.


Check our our new feature, Current Agency Actions & Public Comment Opportunities.





Mid-Atlantic Committee on the Ocean


MACO is a committee established by MARCO to foster collaboration among states, federal agencies, the Mid-Atlantic Fishery Management Council, and federally recognized tribes, and to engage stakeholders.

MACO Updates

MARCO Report Examines the Value of an Expanded Regional Ocean Economy


New Perspectives on the Ocean Economy of the Mid-Atlantic States” provides regional and state-by-state summaries of the impacts of ocean-reliant economic activity from an expanded set of sectors.

Report summary



MARCO will hold a webinar on January 31 from 11:00 AM -12:00 PM entitled Marine Sanctuaries as a Mid-Atlantic Ocean Conservation Tool.

During this publicly available and free webinar, participants will learn about the designation of Stellwagen Bank National Marine Sanctuary and hear how Mid-Atlantic Ocean Data Portal can be used to visualize use of ocean space.