Mo. Rev. Stat. § 226.796
Current with changes from the 2023 Legislative Session
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. The department shall not use state moneys for such signs, but may accept donations from private sources or federal grants to construct and erect signs described in this section.
§ 226.796, RSMo