23 C.F.R. § 750.109 Exclusions.
Title 23 - Highways
The standards in this part shall not apply to markers, signs and plaques in appreciation of sites of historical significance for the erection of which provisions are made in an agreement between a State and the Secretary of Transportation, as provided in the Act, unless such agreement expressly makes all or any part of the standards applicable.
Title 23: Highways
PART 750—HIGHWAY BEAUTIFICATION
Subpart A—National Standards for Regulation by States of Outdoor Advertising Adjacent to the Interstate System Under the 1958 Bonus Program
§ 750.109 Exclusions.

