OTTAWA - Canada Post isn't happy that arbitration hearings have been delayed until next year.

Spokesman Jon Hamilton says action is needed now to address Canada Post's labour costs to protect the Crown Corporation's long-term viability.

A judge has agreed to put arbitration proceedings on hold for three months.

It's because the Canadian Union of Postal Workers objected to the government's choice of arbitrator.

CUP-W said retired judge Coulter Osborne isn't bilingual and doesn't have the necessary labour relations experience.

The Federal Court of Canada is scheduled to hear arguments on the matter in January.

Federal back-to-work legislation passed in June forced postal workers to accept wages that amounted to less than Canada Post's last offer.

It also imposed a form of winner-take-all arbitration where the two sides will each make a final offer -- one of which will be accepted.