Never seen this before what does it mean?

[Dr. HK]

 

[Dr. HK]

Zoom in, Kickapoo tribe but says Exempt then Oklahoma at the bottom

 

[GlockPride]

Illegal license plate surround. Not that I care but some overzealous LE might.

 

[4play]

Exempt means it's exempt from excise tax. The only tribal tags that are exempt are tribal government vehicles, all other tribal tags vehicles are required to pay state tax, and the owner of the vehicle is responsible for that.

 

[AKmoose]

It means you're too close! Quit tailgating.