- Domestic Vessels

8/11/2015: New AIS Encoding Guide posted

The Coast Guard has posted an Automatic Identification System, or AIS, Encoding Guide. International and domestic regulations require that mariners maintain each AIS in effective operating condition, which includes accurate data input and upkeep of AIS data parameters. The Guide may assist in meeting those requirements.

View the guide

This blog is not a replacement or substitute for the formal posting of regulations and updates or existing processes for receiving formal feedback of the same. Links provided on this blog will direct the reader to official source documents, such as the Federal Register, Homeport and the Code of Federal Regulations. These documents remain the official source for regulatory information published by the Coast Guard.

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