Pub. L. 104-59, tit. III, sec. 306
MOTORIST CALL BOXES.
SEC. 306. MOTORIST CALL BOXES. Section 111 of title 23, United States Code, is amended by adding at the end the following: “(c) Motorist Call Boxes.— “(1) In general.—Notwithstanding subsection (a), a State may permit the placement of motorist call boxes on rights-of-way of the National Highway System. Such motorist call boxes may include the identification and sponsorship logos of such call boxes. “(2) Sponsorship logos.— “(A) Approval by state and local agencies.—All call box installations displaying sponsorship logos under this subsection shall be approved by the highway agencies having jurisdiction of the highway on which they are located. “(B) Size on box.—A sponsorship logo may be placed on the call box in a dimension not to exceed the size of the call box or a total dimension in excess of 12 inches by 18 inches. “(C) Size on identification sign.—Sponsorship logos in a dimension not to exceed 12 inches by 30 inches may be displayed on a call box identification sign affixed to the call box post. “(D) Spacing of signs.—Sponsorship logos affixed to an identification sign on a call box post may be located 109 STAT. 581 on the rights-of-way at intervals not more frequently than 1 per every 5 miles. “(E) Distribution throughout state.—Within a State, at least 20 percent of the call boxes displaying sponsorship logos shall be located on highways outside of urbanized areas with a population greater than 50,000. “(3) Nonsafety hazards.—The call boxes and their location, posts, foundations, and mountings shall be consistent with requirements of the Manual on Uniform Traffic Control Devices or any requirements deemed necessary by the Secretary to assure that the call boxes shall not be a safety hazard to motorists.”.