Section 167.77 - In the approach to Boston, MA: Traffic separation scheme(a) A separation zone 1 mile wide is established and is centered upon the following geographic positions: | Latitude | Longitude |
| 42°20.73' N | 70°39.06' W. |
| 42°18.28' N | 70°01.14' W. |
| 40°49.25' N | 69°00.81' W. |
(b) A traffic lane for northbound traffic is established between the separation zone and a line connecting the following geographical positions: | Latitude | Longitude |
| 40°50.47' N | 68°58.67' W. |
| 42°20.17' N | 69°59.40' W. |
| 42°22.71' N | 70°38.62' W. |
(c) A traffic lane for southbound traffic is established between the separation zone and a line connecting the following geographical positions: | Latitude | Longitude |
| 42°18.82' N | 70°40.49' W. |
| 42°16.39' N | 70°02.88' W. |
| 40°48.03' N | 69°02.95' W. |
USCG-2010-0718, 75 FR 77534, Dec. 13, 2010