What Gets Featured on Blue Highway Signs?

What Gets Featured on Blue Highway Signs?

By iHeartPodcasts

The rules vary from state to state, but there are specific guidelines for what services can and can't get a mention on U.S. highway signs. Learn more in this episode of BrainStuff, based on this article: https://auto.howstuffworks.com/tech-transport/who-featured-blue-highway-exit-signs.htm

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