Prior to Bill 139, at the conclusion of the hearing, the Ontario Municipal Board made a decision to either amend or revoke the order or refuse to amend or revoke the order, and the Minister was required to give effect to the decision of the Ontario Municipal Board. The exception to this was if the Minister notified the Ontario Municipal Board that a matter of provincial interest is, or is likely to be, adversely affected. In such instance, the decision of the Ontario Municipal Board was not final and binding with respect to the amendment or revocation of provisions identified in the notice, until the Lieutenant Governor in Council confirms the decision. See Legislative History for repealed subsections 47(13.1) - (13.5).
Post-Bill 139, the Tribunal provides a written recommendation to the Minister at the conclusion of the hearing, following which, as set out in subsection 47(15), the Minister makes the decision to amend or revoke the order.