U.S. Code of Federal Regulations
Regulations most recently checked for updates: Mar 26, 2026
Minimum Operator License
| Ship Morse telegraph | T. |
| Ship direct-printing telegraph | MP. |
| Ship telephone, with or without DSC, more than 250 watts carrier power or 1,000 watts peak envelope power | PG. |
| Ship telephone, with or without DSC, not more than 250 watts carrier power or 1,000 watts peak envelope power | MP. |
| Ship telephone, with or without DSC, not more than 100 watts carrier power or 400 watts peak envelope power | |
| Above 30 MHz | None. 1 |
| Below 30 MHz | RP. |
| Ship earth station | RP. |
1 RP required for compulsory ships and international voyages.
