84(1)Any notice, order or other document under this Act or the regulations is sufficiently given, served or delivered if delivered personally or sent by registered mail addressed to the person to whom it is to be given, served or delivered at the person’s last known address.

84(2)A notice, order or other document sent by registered mail in accordance with subsection (1) shall be deemed to be given, served or delivered on the fifth day after the day of mailing, unless the person to whom it is sent establishes that, acting in good faith, the person did not receive the notice, order or other document, or did not receive it until a later date, through absence, accident, illness or other cause beyond the person’s control.