N.C. Gen. Stat. § 120-152

The members of the Commission who are members of the General Assembly shall receive subsistence and travel allowances at the rate set forth in G.S. 120-3.1. Members who are officials or employees of the State of North Carolina shall receive subsistence and travel allowances at the rate set forth in G.S. 138-6. All other members plus the Chairman of the Advisory Committee shall be paid the per diem allowances at the rates set forth in G.S. 138-5. Other members of the Advisory Committee shall serve on a voluntary basis and not receive subsistence and travel expenses.