All BlueChart g2 Vision HD maps have a 7-character ID code. Here’s how to read the code.
|AE =||Asia, East (i.e., Japan, China, Indonesia)|
|AW =||Asia, West|
|EU =||Europe (including all Mediterranean Sea)|
|RU =||Eastern Europe/Russia|
|SA =||South America|
|PC =||Pacific Ocean (i.e., Australia, New Zealand)|
|US =||U.S. and Caribbean|