N.C. Gen. Stat. § 106-405.17
The State Board of Agriculture shall have full power to promulgate and enforce such rules and regulations as it deems necessary for the control and eradication of equine infectious anemia. This authority shall include, but not be limited to, the power to make regulations requiring the testing of horses, ponies, mules and asses for equine infectious anemia prior to sale, exhibition or assembly at public stables or other public places, and authority to require the owner, operator or person in charge of shows, sales, public stables and other public places to require proof of freedom from equine infectious anemia before any animal is permitted to remain on the premises. The Board shall also have the authority to set fees for such tests as necessary to recover the costs to the North Carolina Department of Agriculture and Consumer Services.
N.C. Gen. Stat. § 106-405.17