| 1 | Ch 01A | 156.050000 | RX only | FM | 25 | | | | | | | marine | No | Port operations and commercial traffic; available only in the New Orleans / Lower Mississippi area (USCG note a). |
| 2 | Ch 05A | 156.250000 | RX only | FM | 25 | | | | | | | marine | No | VTS / port operations channel used in Houston, New Orleans, and Seattle areas (USCG note a). |
| 3 | Ch 06 | 156.300000 | RX only | FM | 25 | | | | | | | marine | No | Designated for intership safety communications. |
| 4 | Ch 07A | 156.350000 | RX only | FM | 25 | | | | | | | marine | No | Commercial traffic; supports VHF Digital Small Message Service (VDSMS). |
| 5 | Ch 08 | 156.400000 | RX only | FM | 25 | | | | | | | marine | No | Commercial intership traffic only; VDSMS capable. |
| 6 | Ch 09 | 156.450000 | RX only | FM | 25 | | | | | | | marine | No | Primary boater calling channel for commercial and non-commercial use (VDSMS capable). |
| 7 | Ch 10 | 156.500000 | RX only | FM | 25 | | | | | | | marine | No | Commercial working channel (VDSMS capable). |
| 8 | Ch 11 | 156.550000 | RX only | FM | 25 | | | | | | | marine | No | Commercial working channel and VTS in selected areas (VDSMS capable). |
| 9 | Ch 12 | 156.600000 | RX only | FM | 25 | | | | | | | marine | No | Port operations; Vessel Traffic Service (VTS) in selected areas. |
| 10 | Ch 13 | 156.650000 | RX only | FM | 25 | | | | | | | marine | No | Bridge-to-bridge navigation safety; vessels >20 m must maintain a listening watch in U.S. waters. |
| 11 | Ch 14 | 156.700000 | RX only | FM | 25 | | | | | | | marine | No | Port operations; Vessel Traffic Service (VTS) in selected areas. |
| 12 | Ch 15 | 156.750000 | RX only | FM | 25 | | | | | | | marine | No | Environmental receive-only channel (Class C EPIRB). |
| 13 | Ch 16 Dist | 156.800000 | RX only | FM | 25 | | | | | | | marine | No | International distress, safety, and calling channel. Maintain a continuous guard as required. |
| 14 | Ch 17 | 156.850000 | RX only | FM | 25 | | | | | | | marine | No | State and local government maritime control channel. |
| 15 | Ch 18A | 156.900000 | RX only | FM | 25 | | | | | | | marine | No | Commercial working channel (VDSMS capable). |
| 16 | Ch 19A | 156.950000 | RX only | FM | 25 | | | | | | | marine | No | Commercial working channel (VDSMS capable). |
| 17 | Ch 20 | 161.600000 | 157.000000 | FM | 25 | | | | | | | marine | Yes | Port operations duplex channel. |
| 18 | Ch 20A | 157.000000 | RX only | FM | 25 | | | | | | | marine | No | Simplex variant of channel 20 for port operations. |
| 19 | Ch 21A | 157.050000 | RX only | FM | 25 | | | | | | | marine | No | U.S. Coast Guard only. |
| 20 | Ch 22A | 157.100000 | RX only | FM | 25 | | | | | | | marine | No | USCG liaison and maritime safety information broadcasts (announced on Ch 16). |
| 21 | Ch 23A | 157.150000 | RX only | FM | 25 | | | | | | | marine | No | U.S. Coast Guard only. |
| 22 | Ch 24 | 161.800000 | 157.200000 | FM | 25 | | | | | | | marine | Yes | Marine operator public correspondence channel; VDSMS capable. Cannot be used after 1 Jan 2030 (USCG note b). |
| 23 | Ch 25 | 161.850000 | 157.250000 | FM | 25 | | | | | | | marine | Yes | Marine operator public correspondence channel; VDSMS capable. Cannot be used after 1 Jan 2030 (USCG note b). |
| 24 | Ch 26 | 161.900000 | 157.300000 | FM | 25 | | | | | | | marine | Yes | Marine operator public correspondence channel; VDSMS capable. Cannot be used after 1 Jan 2030 (USCG note b). |
| 25 | Ch 27 | 161.950000 | 157.350000 | FM | 25 | | | | | | | marine | Yes | Marine operator public correspondence channel; duplex variant pending reassignment to channel 1027 per ITU WRC-19. |
| 26 | Ch 28 | 162.000000 | 157.400000 | FM | 25 | | | | | | | marine | Yes | Marine operator public correspondence channel; duplex variant pending reassignment to channel 1028 per ITU WRC-19. |