N.C. Gen. Stat. § 115D-39.2

In order to make instruction as accessible as possible to all citizens, the teaching of curricular courses and of noncurricular extension courses at convenient locations away from institution campuses as well as on campuses is authorized and shall be encouraged. A pro rata portion of the established regular tuition rate charged a full-time student shall be charged a part-time student taking any curriculum course. In lieu of any tuition charge, the State Board of Community Colleges shall establish a uniform registration fee, or a schedule of uniform registration fees, to be charged students enrolling in extension courses for which instruction is financed primarily from State funds.