Canada Industrial Relations Board Regulations, 2012

30 In any application relating to subsection 24(1) of the Code, or where section 18.1 of the Code applies

• (a) the membership of an employee in a trade union is evidence that the employee wishes to be represented by the trade union as that employee’s bargaining agent; and

• (b) the membership in a trade union of a majority of employees in a unit appropriate for collective bargaining is evidence that the majority of the employees in the bargaining unit wish to be represented by the trade union as their bargaining agent.