226.796. U.S. Highway 66 designated historic highway. — United States Highway 66 is hereby designated as a historic highway. The department of transportation may place suitable markings and informational signs along United States Highway 66. Such signs shall consist of the usual United States highway sign with the words "Historic Route 66" printed on the face of the sign.
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(L. 1990 H.B. 1629 § 1, A.L. 2025 S.B. 348)