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ARTICLE · 16 OCTOBER 2026

Regulatory Relief For Businesses: Ontario Proposes Removing Mandatory ECA To EASR Transition Requirements

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Ontario's Ministry of the Environment, Conservation and Parks has proposed amendments to remove the mandatory January 31, 2027 deadline requiring businesses to transition from Environmental Compliance Approvals to the Environmental Activity and Sector Registry for air emissions. The proposed changes would shift to a change-based transition requirement, allowing companies to continue operating under existing ECAs unless operational modifications trigger the need for transition.

CanadaEnvironment

On August 6, 2026, Ontario’s Ministry of the Environment, Conservation and Parks (the “MECP”) published a proposal to amend the transition requirements in the Registrations Under Part II.2 of the Act – Activities Requiring Assessment of Air Emissions Regulation (the “Air Emissions Regulation”) under the Environmental Protection Act (the “EPA”), which currently requires proponents operating under existing Environmental Compliance Approvals (“ECAs”) to transition to the Environmental Activity and Sector Registry (the “EASR”) for air emissions by January 31, 2027. The proposed amendments would remove this mandatory transition deadline, allowing proponents to continue operating under their existing ECAs where no operational changes are planned. The proposed amendments are intended to reduce administrative burdens on proponents while upholding the environmental protections provided by the Air Emissions Regulation and the EPA.

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The foregoing provides only an overview and does not constitute legal advice. Readers are cautioned against making any decisions based on this material alone. Rather, specific legal advice should be obtained.

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