Division II - Employers' Organization — Collective agreements
64
(1) A collective agreement entered into between an employers' organization and a trade union, or council of trade unions, is binding upon the employers' organization, employers whose bargaining rights have been acquired by the employers' organization engaged in the construction industry in the sector and area covered by the accreditation order, the trade union, council of trade unions and employees within the scope of the collective agreement.
64(2)
A collective agreement shall not be individually negotiated between an employer in the sector and geographic area in respect of which an employers' organization has been accredited and a trade union or council of trade unions, and, where a collective agreement is entered into, it is void.
Not legal advice. Verify the cited article against the signed agreement.