Ecojustice: Federal Government Refuses IAA Appeal, Citing Uncertainty

• The Canadian federal government has decided not to appeal the Alberta Court of Appeal's ruling on the Impact Assessment Act, 2019.
• Ecojustice, an environmental law charity, expressed deep disappointment, citing increased `federal environmental oversight uncertainty`.
• The Alberta Court of Appeal, in `Reference re Impact Assessment Act, as amended, 2026 ABCA 320`, found the IAA unconstitutional by a majority decision.
• The court's ruling specifically focused on the IAA's definition of "adverse effects within federal jurisdiction" and its decision-making provisions.
• Ecojustice urged the government to collaborate with Indigenous peoples and experts to establish a new, constitutionally sound federal impact assessment law.

This inaction, according to Ecojustice, exacerbates `federal environmental oversight uncertainty`.

The Canadian federal government has opted not to challenge a significant ruling by the Alberta Court of Appeal concerning the constitutionality of the Impact Assessment Act, 2019 (IAA). This decision has drawn sharp criticism from Ecojustice, a prominent environmental law charity in Canada. The organization voiced its profound disappointment regarding the federal government's choice, emphasizing the potential ramifications for environmental oversight across the country.

Charlie Hatt, Ecojustice's climate director, highlighted the timing of this decision, stating that it introduces considerable uncertainty into the future of impact assessments in Canada. He underscored the critical need for robust federal environmental oversight, particularly in the current climate. The charity's stance reflects a concern that the government's refusal to appeal could weaken its ability to effectively assess the environmental consequences of major projects.

The contentious ruling, officially cited as `Reference re Impact Assessment Act, as amended, 2026 ABCA 320`, saw the Alberta Court of Appeal's majority determine that the `Impact Assessment Act constitutionality Canada` was flawed. Specifically, the court found the legislation to be unconstitutional. Ecojustice pointed out that the court's judgment particularly scrutinized two key aspects of the IAA: its definition of "adverse effects within federal jurisdiction" and its provisions related to decision-making processes.

This judicial finding has significant implications for federal environmental regulation. The court's focus on these specific clauses suggests a perceived overreach or ambiguity in how the federal government sought to define and exert its authority over environmental impacts. The `Alberta Court of Appeal IAA ruling` therefore challenges the scope of federal jurisdiction in environmental assessments, creating a complex legal precedent.

Ecojustice contends that the federal government's decision not to appeal the `Alberta Court of Appeal IAA ruling` casts a shadow over its commitment to defending its constitutional authority. The charity argues that Canadians expect their government to uphold its jurisdiction in evaluating the environmental impacts of large-scale developments and to ensure that such decisions serve the broader public interest. This inaction, according to Ecojustice, exacerbates `federal environmental oversight uncertainty`.

In response to this development, Ecojustice has called upon the Canadian government to take proactive steps. The organization advocates for a collaborative process involving Indigenous peoples, environmental experts, and the general public to formulate a new, strong, and constitutionally sound federal impact assessment law. This proposed approach aims to address the legal vulnerabilities identified by the Alberta court while maintaining effective environmental protections.

This recent criticism of the federal government's stance on the IAA is consistent with Ecojustice's broader efforts in environmental advocacy. For instance, in September, the Federal Court rejected a motion to dismiss a climate accountability lawsuit. This case, brought by three youth applicants, Environmental Defence Canada, and the Canadian Association of Physicians for the Environment, challenged the federal government's approach to greenhouse gas emissions, with an `Ecojustice lawyer` representing the applicants.

Furthermore, Ecojustice lawyers have actively advised the government on potential legal challenges related to fossil fuel projects. On May 4, three lawyers from the organization issued a letter to the Canadian government, its ministers, and Crown corporations. This letter warned of potential constitutional challenges should new or expanded public financing or subsidies be provided for a new oil pipeline or other major fossil fuel initiatives, specifically naming projects such as Ksi Lisims LNG and LNG Canada phase 2. These actions underscore Ecojustice's ongoing commitment to challenging government decisions and policies perceived as detrimental to environmental protection and climate action.

Lawyers advising on major development projects in Canada should be aware of the increased legal uncertainty surrounding federal environmental impact assessments, following the federal government's decision not to appeal the Alberta Court of Appeal's ruling on the Impact Assessment Act. This creates a complex regulatory landscape that may impact project approvals and compliance strategies, requiring careful risk assessment for clients.

Source: Original reporting via Canadian Legal Newswire