23 C.F.R. § 750.155 State standards.
Title 23 - Highways
This part does not prohibit a State from establishing and maintaining standards which are more restrictive with respect to directional and official signs and notices along the Federal-aid highway systems than these national standards. [38 FR 16044, June 20, 1973, as amended at 40 FR 21934, May 20, 1975]
Title 23: Highways
PART 750—HIGHWAY BEAUTIFICATION
Subpart B—National Standards for Directional and Official Signs
§ 750.155 State standards.
