On January 19, 2000 - United Parcel Service (UPS) submitted its notice of intent to submit a claim to Arbitration under the North American Free Trade Agreement (NAFTA). NAFTA gives foreign corporations the right to sue governments if they believe their investments are restricted by government measures.

On April 19, 2000 - UPS filed its notice of arbitration and its statement of claim. UPS's claim argued that its investments are being restricted by Canada’s publicly funded network of mailboxes and post offices. It said this network gives Canada's public post office an unfair advantage when delivering courier services that are in competition with private courier companies. The claim demanded $160 million US in damages.

*March 28, 2001 -The Canadian Union of Postal Workers (CUPW) and the Council of Canadians (Council) launched a constitutional challenge to the NAFTA investment rules that UPS used to sue Canada.

October 22, 2001 - CUPW and the Council were denied standing as parties in the lawsuit against the government of Canada brought by United Parcel Service (UPS). While the Tribunal ruled that it could receive written submissions or Amicus Briefs, it reserved that decision to a later date.

July 2002 - UPS finally released its complaint - or statement of claim - in a bid to silence some of its critics. UPS also tried to claim the moral high ground by announcing that it had reached an agreement with the Canadian government to open NAFTA tribunal hearings on its complaint to the public. The vast majority of tribunal business was conducted in secret.

November 2002 - The tribunal issued a decision on jurisdictional issues.

January 2003 - CUPW reminded the tribunal that it wanted to make submissions. The union was concerned that the UPS claim would undermine public postal services and jobs, particularly in rural areas. CUPW was also concerned that there was a threat to members’ pensions.

*On July 8, 2005 - Ontario Superior Court Justice Sarah Pepall dismissed the constitutional challenge to NAFTA investment rules launched by the CUPW and Council, thereby upholding the unprecedented rights given to corporations under NAFTA.

*August 12, 2005 - The Council and CUPW filed an appeal in connection with their constitutional challenge before the Court of Appeal for Ontario.

December 2005 - The tribunal hearing UPS’s complaint under NAFTA held hearings on the merits of the case against Canada.

*November 30, 2006 - The Court of Appeal for Ontario dismissed the appeal.

June 13, 2007 - The federal government issued a media release about the tribunal decision in regard to UPS’s complaint under NAFTA

*Ongoing - The Council and CUPW are seeking leave to appeal their case on the constitutionality of NAFTA investment rules to the Supreme Court of Canada. The Supreme Court has the right to grant or deny leave to appeal.

* Information pertaining to the court challenge on the constitutionality of NAFTA investment rules