Regarding the news release titled “Public Notice – Have your say on the draft co-operation agreement between Ontario and Canada,” distributed on November 24, 2025, by the Impact Assessment Agency of Canada via PR Newswire, we have been informed by the company that the deadline for submitting comments, found in the 7th paragraph, has been revised from “December 3, 2025” to “December 15, 2025.” The comprehensive, corrected release is presented below:

Public Notice: Opportunity to comment on the proposed co-operation agreement between Ontario and Canada

Public comments invited

OTTAWA, ON, Nov. 24, 2025 –

Background:
In May 2025, the Government of Canada committed to establishing co-operation agreements with all interested provinces within a six-month timeframe. These agreements aim to support the Government’s objective of “one project, one review” while simultaneously upholding Canada’s stringent environmental standards and its constitutional obligations to Indigenous Peoples.

The Impact Assessment Agency of Canada (IAAC) is inviting Indigenous Peoples and the general public to submit feedback on the between the Governments of Ontario and Canada.

This proposed co-operation agreement details how Ontario and Canada will collaborate to implement a “one project, one review” approach for significant projects requiring an assessment. The agreement formalizes the commitment of both jurisdictions to an efficient and effective assessment process that minimizes duplication and respects federal and provincial authority. It will facilitate the implementation of the full range of co-operation tools and flexibilities available under the Impact Assessment Act. Furthermore, it seeks to provide certainty regarding the methodologies to be employed, while retaining the flexibility to apply the most appropriate approach on a project-by-project basis.

IAAC also previously sought feedback through a consultation paper, focusing more broadly on Canada’s suggested approach to collaborating with provinces on major project assessments. The comments gathered from that earlier consultation are also being considered for the co-operation agreement with Ontario.

How to provide comments:

Please visit the webpage to review the draft co-operation agreement and submit your feedback.

Comments submitted by December 15, 2025, 11:59 p.m. EST will be taken into consideration. All feedback will be publicly posted.

To view the co-operation approach paper and access previously received comments, please visit the .

Next Steps:
All comments will be considered during the finalization of the Ontario-Canada co-operation agreement. The completed agreement will be published on .

For ongoing updates, follow IAAC on X: 

SOURCE Impact Assessment Agency of Canada