Canada Industrial Relations Board Regulations, 2012

24 (1) Any individual who has been authorized by the Board under paragraph 16(k) of the Code may, in relation to a proceeding before the Board, issue a summons requiring an individual to appear, give evidence under oath and produce documents and things.

(2) With the exception of a matter to which the expedited process applies, or with the consent of the Board, the summons referred to in subsection (1) must be served no later than five days before the hearing.