(1) Subject to subsections (2) and (3), upon receipt of a notice from the Labour Commissioner, under section 358, an employer shall, within 21 days of receiving the notice, communicate—
(a) his or her agreement to recognize the trade union as the bargaining agent for that bargaining unit; or
(b) that the employer doubts that the trade union is entitled to be recognized as the bargaining agent for that bargaining unit.
(2) A communication from an employer under subsection (1), shall be made in writing.
(3) A communication from an employer under subsection (1) (b) shall specify the employer's reasons for doubting that the trade union is entitled to be so recognized.