About MARCO
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.
Mid-Atlantic Ocean Data Portal
The Portal is an ocean planning resource center featuring the Marine Planner, an interactive mapping tool.
Mid-Atlantic Ocean Planning Committee
The Mid-A OPC 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.
News & Updates
Watch: Microplastics and Producer Responsibility
View a recording of our Aug. 22 webinar examining regional and federal policies addressing marine microplastics and plastic waste.
Request for Qualifications: Tribal Engagement Coordinator
Help strengthen and sustain engagement between MARCO and regional Tribes with interests in ocean and coastal issues
Mid-Atlantic Marine Debris Summit
November 12-13, 2025
Event in Dewey Beach, DE, will highlight current and emerging issues and effective prevention and reduction strategies
MACAN Educational Video Series
This four-part series will introduce you to the sources of coastal and ocean acidification, its impacts on coastal habitats, fisheries, and livelihoods, and the technology scientists are developing to monitor acidification and remove carbon dioxide from the ocean.
The 2025 Mid-Atlantic Ocean Forum
Thanks to all who participated in Baltimore for this year’s event. Click here to view videos of the panels and presentations.