An employee of any local board of education who is a member of a domiciled employees' association that has at least 40,000 members, the majority of whom are public school teachers, may authorize in writing the periodic deduction each payroll period from the employee's salary or wages a designated lump sum or sums to be paid for dues and voluntary contributions for the employees' association. The total membership count and the public school teacher membership count of a domiciled employees' association that has at least 40,000 members, the majority of whom are public school teachers, shall be verified and certified annually by the State Auditor.
An authorization under this subsection shall remain in effect until revoked by the employee. A plan of payroll deductions pursuant to this subsection for employees of the State and other association members shall become void if the employees' association engages in collective bargaining with the State, any political subdivision of the State, or any local school administrative unit. This subsection does not apply to county or municipal governments or any local governmental unit, except for local boards of education.
N.C. Gen. Stat. § 143B-426.40A