1909
Licensing begins, plates made by auto owners
1915
Annual renewal required, state issues plates
1923
Plates display state name spelled out
1942
First slogan appears, slogans remain through 1948
1944
Fiberboard plates used during wartime rationing
1955
Plates regulated to standard 6-by-12-inch size
1969
Renewal decals appear, first multi-year plates
1973
First fully reflective plates, oldest series still in use
1985
First embedded graphics; slogan returns after 36 years
1992
Plate celebrates 100 years of Utah statehood
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1998
Olympic license plate, available only through the event
2007-08
First photographs incorporated in license-plate design