(a) A circular precautionary area with a radius of 7 miles is established centered upon 40°27.50′ N, 73°49.90′ W.
(b) A precautionary area is established between the traffic separation scheme “Eastern Approach, off Nantucket” and the traffic separation scheme “In the Approach to Boston, Massachusetts.”
(1) The precautionary area is bounded to the east by a circle of radius 15.5 miles, centered upon geographical position 40°35.00′ N, 69°00.00′ W, and is intersected by the traffic separation schemes “In the Approach to Boston, Massachusetts” and “Off New York” at the following geographic positions:
| Latitude | Longitude |
|---|---|
| 40°50.33′ N | 68°57.00′ W |
| 40°23.75′ N | 69°14.63′ W |
(2) The precautionary area is bounded to the west by a line connecting the two traffic separation schemes between the following geographical positions:
| Latitude | Longitude |
|---|---|
| 40°36.75′ N | 68°15.16′ W |
| 40°48.00′ N | 69°03.33′ W |
[CGD 84-004, 52 FR 33589, Sept. 4, 1987, as amended by USCG-2010-0351, 75 FR 36287, June 25, 2010]