North Carolina General Statutes Chapter 95. Department of Labor and Labor Regulations § 95-79. Certain agreements declared illegal

(a) Any agreement or combination between any employer and any labor union or labor organization whereby persons not members of such union or organization shall be denied the right to work for said employer, or whereby such membership is made a condition of employment or continuation of employment by such employer, or whereby any such union or organization acquires an employment monopoly in any enterprise, is hereby declared to be against the public policy and an illegal combination or conspiracy in restraint of trade or commerce in the State of North Carolina.

(b) Any provision that directly or indirectly conditions the purchase of agricultural products, the terms of an agreement for the purchase of agricultural products, or the terms of an agreement not to sue or settle litigation upon an agricultural producer's status as a union or nonunion employer or entry into or refusal to enter into an agreement with a labor union or labor organization is invalid and unenforceable as against public policy in restraint of trade or commerce in the State of North Carolina. Further, notwithstanding G.S. 95-25.8, an agreement requiring an agricultural producer to transfer funds to a labor union or labor organization for the purpose of paying an employee’s membership fee or dues is invalid and unenforceable against public policy in restraint of trade or commerce in the State of North Carolina. For purposes of this subsection, the term “agricultural producer” means any producer engaged in any service or activity included within the provisions of section 3(f) of the Fair Labor Standards Act of 1938, 29 U.S.C. § 203, or section 3121(g) of the Internal Revenue Code of 1986, 26 U.S.C. § 3121.