AIS & MMSI Made Easy

Maritime Mobile Service Identity (MMSI)s are nine digit numbers used by maritime digital selective calling (DSC), automatic identification systems (AIS) and certain other equipment to uniquely identify a ship or a coast radio station. In order to obtain an MMSI, mariners required by regulation to carry a marine radio and those who travel outside the U.S. or Canada to foreign ports must apply to the Federal Communications Commission for a ship station license or an amendment to a ship station license. State and local governments can generally obtain an FCC ship station license at no charge. Mariners not required to carry a marine radio (e.g. recreational boaters) and who remain in U.S. waters can obtain an MMSI through approved organizations such as BOAT US 1-800-563-1536, U.S. Power Squadron, and Shine Micro (primarily for AIS). Most organizations provide MMSIs at no charge even to nonmembers.

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The new USCG AIS Rules are now in effect!
Are you operating legally?

What is the USCG rule?
The United States Coast Guard (USCG)’s rules on vessels carrying Automatic Identification System (AIS) transponder equipment comes into force today. It affects all classes of vessels, including commercial shipping, fishing vessels and tugs that operate in US navigable waters.
The USCG states that any commercial vessel more than 65ft long needs to carry AIS equipment. The rules includes fishing vessels over 26ft and tugs that are more than 65ft, and with more than 600hp of pull capacity. Vessels certified to carry more than 150 passengers and vessels engaged in the movement of certain dangerous cargo, flammable or combustible liquid cargo in bulk are also included, regardless of length. Also dredgers that operate near a shipping channel must use an AIS transponder.
The rules significantly increase the number of commercial vessels required to install AIS. The USCG introduced the new rules to improve navigational safety by increasing the amount of AIS data available to users of US navigable waters. Most commercial vessels will need to have installed AIS Class A devices. But certain vessels, including fishing vessels, dredgers and small passengers ships that operate at speeds of less than 14 knots, can use Class B devices.



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Nautical Service Technologies is centrally located between the major boating communities of south Florida. We have developed a wide network of marine service providers and our contacts include towing and salvage companies, diver services, shipyards, marine mechanical specialists, marine electronics experts, forensic laboratories and chandlers. We are happy to assist you with your marine surveying requirements.