Principal Port (43)
| Less than 1,000 Tons |
| 1,000 - 10,000 Tons |
| 10,001 - 50,000 Tons |
| 51,001-100,000 Tons |
| 100,001 - 200,000 Tons |
| 200,001+ Tons |
Pilot Boarding Station (2)
Pilot Boarding Area (41)
Deepwater Port (45)
Aids To Navigation (44)
Danger Zones Restricted Areas (58)
Area to be avoided (42)
Anchorages Area (39)
Precautionary Area (38)
Recommended Route (37)
Traffic Lane (36)
| Separation Zone |
| Shipping Safety Fairway |
|
| Traffic Lane |
Safety, Security, and Regulated Zone (35)
| Regulated Navigation Area |
| Safety/Security Zone - Permanent |
| Safety/Security Zone - Conditional |
COLREGS Demarcation Line (57)
Submarine Pipeline Area (31)
Wrecks and Obstructions (30)
Marine Mammal Seasonal Management Area (29)
No Discharge Zones (9)
| Final |
| To be proposed |
Isles of Shoals North Disposal Site (designated 9-25-20) (61)
USCG MA RI PARS Study Areas (63)
Proposed Ambrose Anchorage Ground (64)
USCG MA NH ME PARS Study Area (65)
MNM PARS Recommended Fairways (71)
| Massachusetts Bay Fairway |
| Coastal Zone Fairway |
| Portland Southern Approach Fairway |
|
| Portland Eastern Approach Fairway |
| Gulf of Maine Fairway |
Vineyard Wind 1 Wind Turbine Generators (76)
Vineyard Wind 1 Safety Zones (77)
Revolution Wind Turbine Generators (79)
Revolution Wind Safety Zones (80)
[CLOSED] Coastal Buoy Modernization Candidate (USCG September 2025 Proposal) (81)
| Existing Buoy Proposed for Relocation |
| Proposed Discontinuation |
| Proposed Signal Change(s) and/or Relocation |
|
