N.C. Gen. Stat. § 136-137: Information directories.

The Department of Transportation is authorized to maintain maps and to permit informational directories and advertising pamphlets to be made available at safety rest areas and to establish information centers at safety rest areas and install signs on the right-of-way for the purpose of informing the public of facilities for food, lodging and vehicle services and of places of interest and for providing such other information as may be considered desirable. (1967, c. 1248, s. 12; 1973, c. 507, s. 5; 1977, c. 464, s. 7.1.)