The GPMC I NMC agreements adopt basic monetary terms negotiated by the 13 unions in this alliance, and feature a cooperative, streamlined grievance process. They also incorporate a clause ensuring that there will be no strikes or lockouts to disrupt essential maintenance activities.

Teamsters Canada

International Brotherhood of Electrical Workers

International Association of Iron Workers

Laborers International Union of North America

International Association of Operative Plasterers and Cement Masons

International Union of Bricklayers and
Allied Craftworkers

United Brotherhood of Carpenters, Joiners and
Millwrights of America

International Association of Heat & Frost
Insulators & Allied Workers

International Union of Operating Engineers

International Union of Painters & Allied Trades

United Association of Plumbers & Pipefitters

Sheet Metal Workers International Association

International Brotherhood of Boilermakers