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The Kansas Department of Revenue said there are 731 active registrations containing that random letter combination on standard license plates.

Vehicle owners were sent a letter dated Tuesday asking them to return the plate to their county vehicle office within 30 days for replacement at no cost.

The issue arose last year when a motorist spotted a car with the Kansas plate in traffic near his home in Culver City, California, and took a photo of it. A Kansas woman of Japanese heritage contacted the state after seeing the picture and story in the newspaper put out by the Japanese American Citizens League.