N.C. Gen. Stat. § 143C-4-7
The total number of permanent budgeted positions established in State agencies shall not be increased by the end of any State fiscal year by a greater percentage rate of change than the percentage rate of change of the residential population growth for the State of North Carolina. The Office of State Budget and Management shall be responsible for computing the annual percentage rates of change for each measure. The population growth rate shall be computed by averaging the annual residential population growth rate in each of the preceding 10 fiscal years as stated in the annual estimates of residential population in North Carolina made by the United States Census Bureau. The growth rate of the number of budgeted positions shall be computed by averaging the annual rate of growth of State budgeted positions in each of the preceding 10 fiscal years. The total number of permanent budgeted positions established in State agencies shall be computed by adding the total number of budgeted Full-Time Equivalents from all fund types. This section does not apply to State-funded positions supported by the State in a local public school system or local community college institution.
N.C. Gen. Stat. § 143C-4-7