Mandate of the Impact Assessment Agency of Canada
On June 20, 2024, the Budget Implementation Act, 2024, received Royal Assent and brought into force amendments to the Impact Assessment Act (IAA). These changes were made in response to the Supreme Court of Canada’s decision on the constitutionality of the IAA. Over the coming weeks and months, this website along with procedures, policy and guidance documents will be updated to reflect these legislative changes, as required.
The Impact Assessment Agency of Canada (IAAC) is a federal body accountable to the Minister of Environment and Climate Change.
On this page
Who we are
We deliver high-quality impact assessments that contribute to informed decision-making on major projects in support of sustainable development.
Learn more about impact assessments.
What we do
Through the delivery of impact assessments, we serve Canadians by looking at both positive and negative environmental, economic, social, and health impacts of potential projects like mines, roads, and dams.
- We lead and manage the impact assessment process for all federally designated major projects.
- We lead Crown engagement and serve as the single point of contact for consultation and engagement with Indigenous peoples during impact assessments for designated projects.
- We provide opportunities and funding to support public participation in impact assessments.
- We work to ensure that mitigation measures are applied and are working as intended.
- We promote uniformity and coordination of impact assessment practices across Canada through research, guidance and ongoing discussion with stakeholders and partners.
- We work with a range of international jurisdictions and organizations to exchange best practices in impact assessment.
Come see our impact on Canada.
How we work
Through our seven offices, we lead all federal reviews of major resources projects.
We work with other bodies like the Canada Energy Regulator (formerly the National Energy Board), the Canadian Nuclear Safety Commission, Offshore Boards and other federal departments and agencies.
We also work in cooperation with provinces and territories, Indigenous jurisdictions, environmental organizations and industry.
Learn more about our partners.
When we began
In 1994, the Canadian Environmental Assessment Agency was established to prepare for the implementation of the Canadian Environmental Assessment Act, 1992 (CEAA 1992), which came into effect in early 1995.
In 2019, the Impact Assessment Act was enacted which created the Impact Assessment Agency of Canada and repealed the Canadian Environmental Assessment Act, 2012.
Learn more about milestones in the history of assessments.
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