The union representing Canada’s postal workers wants the Federal Court to declare the cancellation of home mail delivery unconstitutional.

The organization also wants the move to be declared a violation of the federal Charter of Rights and Freedoms.

Canada Post employees said last October that they would take the Crown corporation to court – over the cost cutting plan to end delivery – and install community mailboxes across the country.

Six other organizations representing retired and handicapped citizens – have signed the union’s court filing.

The groups say eliminating home delivery discriminates against the elderly and  people with mental and physical handicaps – because it limits their access to a public service.

Union president Denis Lemelin says he is willing to take the case to the Supreme Court of Canada.

The union represents 54,000 workers and says the cancellation of home delivery will eliminate up to 8,000 jobs.