52.2. If no notice is given in accordance with section 52, the notice provided for in the said section is deemed to have been given on the day of the expiration of the collective agreement or of the arbitration award made in lieu of it.
If the newly certified association has not given such a notice, the notice is deemed to have been given ninety days after the date the association obtained certification.
Copy of the notice is deemed to have been received by the Minister on the same day the notice is deemed to have been given.
At all times, the labour commissioner may, on a mere request by any interested person, determine the date of expiration of a collective agreement when such date is not clearly indicated.