Great South Channel Vessel Speed Restrictions in Effect April 1 - July 31

Having trouble viewing this email? View it as a Web page.

NOAA Fisheries - New England - Mid Atlantic Bulletin

March 26, 2025

Great South Channel Vessel Speed Restrictions in Effect April 1 - July 31

NOAA Fisheries announces the annual opening of a Seasonal Management Area (SMA) in the Great South Channel to protect North Atlantic right whales starting on April 1, 2025. All vessels 65 feet or longer must travel at 10 knots or less in this area to reduce the threat of vessel collisions with these endangered whales. The Great South Channel SMA is in effect through July 31, 2025.

Because vessels of all sizes can strike and injure a right whale, NOAA Fisheries also encourages vessels less than 65 feet in length to slow down to 10 knots or less within active SMAs.

Great South Channel SMA:

Waters bounded by:

42°30'N, 069°45'W

42°30'N, 067°27'W

42°09'N, 067°08'24"W

41°00'N, 069°05'W

41°40'N, 069°45'W then back to starting point.

GSC SMA

Other Active SMAs

Off Race Point SMA (March 1-April 30)

Cape Cod Bay SMA (January 1-May 15)

Mid-Atlantic U.S. SMAs (November 1-April 30)

Southeast U.S. SMAs (November 15-April 15)

More Information

  • Details and graphics of all of vessel strike management zones currently in effect.
  • Approaching a right whale closer than 500 yards is a violation of federal law. 
  • Please report all right whale sightings to 866-755-NOAA (6622).

Spread the Word!

All boaters from Maine to Virginia, or interested parties, can sign up for email or text notifications about the latest Right Whale Slow Zones. You can also follow us on Facebook (@NOAAFisheriesNEMA) and Twitter (@NOAAFish_GARFO) for announcements.

Share our video on Right Whale Slow Zones.

Questions?

Media: Contact GARFO Public Affairs