2. The agreement made between the representative associations as defined in the Act respecting labour relations, vocational training and workforce management in the construction industry (chapter R-20) and the Association of Building Contractors of Québec, or, in the absence of such agreement, the agreement established by the Commission des normes, de l’équité, de la santé et de la sécurité du travail (Commission) includes at least the elements prescribed in this Division.