How long do you have to live in North Carolina to be a resident

For what reason, to be considered a resident to go to college it is 12 months

North Carolina law (G.S. 116-143.1) provides, "To qualify as a resident for tuition purposes, a person must have established legal residence (domicile) in North Carolina and maintained that legal residence for 12 months immediately prior to his or her classification as a resident for tuition purposes." The information requested on the North Carolina Residency Form must be supplied by every applicant for admission or readmission to the University of North Carolina at Chapel Hill who claims to be eligible for the North Carolina tuition rate. If you claim to be a North Carolina legal resident for tuition purposes, please include a completed North Carolina Residency Form with your application.