50(1)No trade union or council of trade unions that has bargaining rights for employees of employers represented by an accredited employers’ organization and no such employer, and no person acting on behalf of such employer, trade union or council of trade unions shall, so long as the accredited employers organization continues to be entitled to represent the employers in a unit of employers, bargain with each other with respect to such employees or enter into a collective agreement designed or intended to be binding upon such employees and, if entered into, any such agreement is void.

50(2)No trade union or council of trade unions that has bargaining rights for employees of employers represented by an accredited employer’s organization and no such employer, and no person acting on behalf of the employer, trade union or council of trade unions shall, so long as the accredited employers’ organization continues to be entitled to represent the employers in a unit of employers, enter into any agreement or understanding, oral or written, which provides for the supply of employees during a legal strike or lock-out, and any such agreement or understanding, if entered into, is void and no such trade union or council of trade unions or person shall supply such employees to the employer.