I can just see the United States trying to do a mass conversion of highway signs. Each state would have to sign off on it, and many would not just out of "the federal government can't tell us what to do."
We'll see if the states actually buy the new driver's license requirements. Utah has already rejected the "No Child Left Behind" education requirements, the DL stuff is going to be even worse. But highway signs would be a war.
RickK
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