Division II - Employers' Organization — Certain agreements void

A trade union or council of trade unions that has bargaining rights for employees of employers represented by an accredited employers' organization and an employer or person acting on behalf of the employer, trade union or council of trade unions shall not, as long as the accredited employers' organization continues to be entitled to represent the employers in a unit of employers, enter into an agreement or understanding, oral or written, that provides for the supply of employees during a legal strike or lockout, and where the agreement or understanding is entered into, it is void and a trade union or council of trade unions or person shall not supply the employees to the employers.