N.C. Gen. Stat. § 81A-25: Unlawful for package to mislead purchaser.

It shall be unlawful to keep for the purpose of sale, offer or expose for sale, or sell, any commodity in package form when said package is so made, or formed, or filled, or wrapped, or exposed, or marked, or labeled as to mislead or deceive the purchaser as to the quantity of its contents. (1945, c. 280, s. 1; 1975, c. 544.)