Do you have regular or antique/classic plates?

I don't think we have any rules like that in Colorado either. I think the only requirement here is that the car is 25 years or older. I have the antique plates on mine now but we can also run the year of the car on antique cars, so I'm going to try and find a pair of '69 plates to put on mine. We do have the law about running an issued plate in the front though.