Ontario Environmental Assessment Act (OEAA) Process
A number of reports were generated throughout the Study to document each of the Study phases as they were completed. All reports were prepared in draft through the life of the Study and were finalised in consideration of stakeholder comments and concerns with the completion of the Environmental Assessment (EA) Study and the submission of the 407 East EA Report to the Minister of Environment.
The reports for each phase of the Study form the Reference Documents of the overall EA Report providing greater details on the approach, findings and results of each phase. The table below highlights the Chapters of the EA Report and notes the corresponding Reference Documents for each chapter as ‘key documentation’.

Canadian Environmental Assessment Act (CEAA) Process
In addition to addressing and documenting the approach and results of the Ontario Environmental Assessment Act (OEAA) requirements, the Canadian Environmental Assessment Act (CEAA) must also be addressed and a report prepared. An Environmental Screening Report was previously prepared to address the requirements of the Canadian Environmental Assessment Act. Please click here to read Chapter 10 of the EA Report which provides a summary of the CEAA process under a Screening and here for more information, materials (including the Draft Screening Report) and website links regarding the CEAA process.
407 East Environmental Assessment Report (August 2009)
The Environmental Assessment (EA) Report documenting the 407 East Provincial EA and Preliminary Design Study process was prepared and made available for agency and public review concurrently with formal submission to the Minister of the Environment (Minister).
The Provincial EA Report was available for a 5-week review period commencing on August 28, 2009. Comments on the EA Report were requested by October 16, 2009 for consideration by MOE in reviewing the EA Report.
A complete list of the materials prepared throughout the 407 East EA and Preliminary Design Study is available in Chapter 2 of the EA Report.
To view the EA Report, its appendices and the Reference Documents please click
Here to view the EA Report
Here to view the Appendices to the EA Report
Here to view the Reference Documents
A Notice of Completion of the Ministry's Review (MOE) was published on December 18, 2009. A five-week public comment period on the Ministry’s Review invited comments from the public and other stakeholders regarding the proposed undertaking, the EA and the Ministry’s Review until January 29, 2010. To view the Ministry’s Review of the 407 East EA Report click here.

Draft (Presubmission) 407 East Environmental Assessment Report
(June 2009)
A Draft Environmental Assessment (EA) Report documenting the 407 East EA and Preliminary Design Study process was prepared and made available for agency and public review prior to a formal approval submission to the Minister of the Environment (Minister).
The Draft EA Report was available for a 5-week review period commencing on June 15, 2009. Comments on the Draft EA Report were requested by July 20, 2009 for consideration in finalizing the EA Report.
The Project Team thanks those who commented on the Draft EA Report. Tables detailing the comments received and the Project Teams response can be viewed here.
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