January 11, 2000
More than 4,000 administrative and technical support staff at the University of Toronto ratify their first collective agreement as members of United Steelworkers Local 1998, expanding the benefits of Steelworker representation to workers in higher education with the largest single organizing victory in years.

February 12, 2002
Local 4120 is chartered at the University of Guelph, bringing the number of university employees represented by the Steelworkers to more than 5,000.

November 2003
After a decade-long campaign led by Steelworkers in Canada, the Westray Bill is finally passed into law, changing Canada's Criminal Code to make corporations, their directors and executives criminally accountable for putting workers' lives at risk.

November 26, 2004
After a year-long campaign to win Steelworker representation, 3,000 former members of the Brotherhood of Maintenance of Way Employees on Canadian National Railway are certified as Steelworkers by the Canada Industrial Relations Board.

June 7, 2006
The United Steelworkers (USW) and the Sierra Club announced the formation of a strategic alliance to pursue a joint public policy agenda under the banner of Good Jobs, A Clean Environment, and A Safer World.

USW and Unite form Workers Uniting, the first global union

The United Steelworkers in Canada and Environmental Defence join forces and found the working-class environmental organization Blue Green Canada.