CFR›Title 23›Chapter I›Part 750›Subpart B ContainsSections 750.151–750.155CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart B—National Standards for Directional and Official Signs Sections 750.151 § 750.151 Purpose. 750.152 § 750.152 Application. 750.153 § 750.153 Definitions. 750.154 § 750.154 Standards for directional signs. 750.155 § 750.155 State standards. Authority23 U.S.C. 131, 315, 49 U.S.C. 1651; 49 CFR 1.48(b). Previous A Subpart A—National Standards for Regulation by States of Outdoor Advertising Adjacent to the Interstate System Under the 1958 Bonus Program Next D Subpart D—Outdoor Advertising (Acquisition of Rights of Sign and Sign Site Owners)