As you know, the OWES is a science-based ranking system that provides a standardized approach to determining the relative value of wetlands. OWES assessments are necessary to designate Provincially Significant Wetlands (PSWs). This designation in turn results in a high level of protection under provincial law and policy such as the Provincial Policy Statement (sections 2.1.4, 2.1.5 and 2.1.8). Yet the complete overhaul of the OWES, as proposed, will ensure that very few wetlands would be deemed provincially significant in the future and that many if not most existing PSWs could lose that designation. As a result, very few of Ontario’s wetlands would benefit in the future from the protection that PSW designation currently provides. We urge you not to proceed with the proposed changes to the OWES, for the reasons outlined below.