AUTOMATIC IDENTIFICATION SYSTEM is a valuable navigation safety radio communication tool. However, its usefulness is undermined by the broadcast of inaccurate, improper or outdated data. It is required that each AIS be maintained in effective operating condition, which includes accurate input and upkeep of AIS data parameters.
The Coast Guard has posted an Automatic Identification System, or AIS, Encoding Guide. This Guide is intended to assist mariners in the proper entry of AIS data.
