21.6. A contravention of section 21.4 or 21.5 authorizes the employee, if not governed by a collective agreement, to assert his rights before a labour commissioner appointed under the Labour Code as if it were a case of dismissal for union activities. Sections 15 to 20 of the Labour Code then apply, mutatismutandis.
If the employee is governed by a collective agreement, his association, or he himself through the application of sections 38b to 38f of the Labour Code, enacted by section 28 of chapter 41 of the statutes of 1977, is entitled to submit a grievance to arbitration. Section 17 of the Labour Code applies, mutatismutandis, to the arbitration of the grievance.