A voluntary vessel speed restriction zone (Dynamic Management Area - DMA) has been established 26 miles south of Nantucket, MA to protect an aggregation of 33 right whales sighted in this area on December 15, 2018.
This DMA is in effect immediately through December 30, 2018.
Mariners are requested to route around this area or transit through it at 10 knots or less.
Nantucket, MA DMA coordinates:
41 17 N
40 24 N
070 37 W
069 25 W
There is also a Seasonal Management Area in effect in Block Island Sound through April 30, 2019. A mandatory speed restriction of 10 knots or less (50 CFR 224.105) is in effect in Block Island Sound.