Ontario Proposes Changes To Environmental Permitting Rules For Most Industrial Facilities

On August 6, 2026, Ontario’s Ministry of the Environment, Conservation and Parks (MECP) posted a proposal on the Environmental Registry of Ontario, which proposes to significantly change the rules around environmental permitting in the province.

Currently, most industrial facilities in Ontario operate under the authority of an Ontario environmental permit, called an “environmental compliance approval” (ECA). The current law requires most of these facilities to register on the Environmental Activity and Sector Registry (EASR) by January 31, 2027, or run the risk of penalties for non-compliance. To do so, facility operators must engage consultants to conduct updated air and noise assessments, file documentation and pay fees. However, Ontario is now proposing to change this transition from ECAs to EASR registration to only take effect when a facility implements changes to its operations. As a result, this proposed change has the potential to save operators tens of thousands of dollars