Section 42 — Canada Labour Code: Effect of revocation or declaration

Where the Board makes an order under section 39, subsection 40(2) or section 41 revoking the certification of a trade union or council of trade unions, or declaring that a trade union is not entitled to represent the employees in a bargaining unit, any collective agreement between the trade union or council of trade unions and the employer of the employees in the bargaining unit that applies to the bargaining unit ceases to have effect from the time the order is made or from such later time as the Board considers appropriate; and the employer shall not bargain collectively, or enter into a collective agreement with the trade union or council of trade unions, for a period of one year from the date of the order, unless the trade union or council of trade unions is certified by the Board under this Part during that period as the bargaining agent for a bargaining unit comprised of employees of the employer.