N.C. Gen. Stat. § 106-351

Systematic dipping of all cattle or horses infested with or exposed to the cattle tick (Margaropus annulatus) shall be taken up in all counties or portions of counties that shall at any time be found partially or completely infested with the cattle tick (Margaropus annulatus) under the direction of the State Veterinarian acting under the authority as hereinafter provided in G.S. 106-351 to 106-363 and as provided in all other laws and parts of laws of North Carolina and the livestock sanitary laws and regulations of the State Board of Agriculture not in conflict with G.S. 106-351 to 106-363.