Regulations last checked for updates: Oct 17, 2024

Title 33 - Navigation and Navigable Waters last revised: Oct 15, 2024
§ 167.76 - In the approach to Boston, MA: Precautionary areas.

(a) A precautionary area is established with a radius of 6.17 nautical miles centered upon geographical position 42°22.71′ N, 70°46.97′ W.

(b) (1) A precautionary area is established and is bounded to the east by a circle of radius 15.5 miles, centered upon geographical position 40°35.01′ N, 68°59.96′ W, intersected by the traffic separation schemes in the approach to Boston, MA, and Eastern approach, off Nantucket (part II of the TSS off New York) at the following geographical positions:

Latitude Longitude
40°50.47′ N68°58.67′ W.
40°23.75′ N69°13.95′ W.

(2) The precautionary area is bounded to the west by a line connecting the two TSSs between the following geographical positions:

Latitude Longitude
40°48.03′ N69°02.95′ W.
40°36.76′ N69°15.13′ W.
[USCG-2010-0718, 75 FR 77534, Dec. 13, 2010]
authority: 46 U.S.C. 70001,70003; Department of Homeland Security Delegation No. 0170.0
source: CGD 81-080, 48 FR 36456, Aug. 11, 1983, unless otherwise noted.
cite as: 33 CFR 167.76