ATHABASCA CHIPEWYAN FIRST NATION v ALBERTA, 2026 ABKB 460

The Athabasca Chipewyan First Nation (“ACFN”) brought an Originating Application for Judicial Review challenging the Director of Environment and Protected Areas’ decision to issue a revised Mine Financial Security Program Standard (the “Standard”). The Standard established the financial security requirements for Alberta oil sands mine operators. Alberta subsequently applied pursuant to Rules 3.15 and 3.68 to strike the Application on the basis that ACFN had served only Alberta and had failed to serve the oil sands operators identified in the Standard. The principal issue was whether those operators were “persons or bodies directly affected” within the meaning of Rule 3.15(3)(c), such that they were required to be served, and whether the failure to do so required the Application to be struck.

Justice Davis held that Rule 3.15 applied to all originating applications for judicial review and drew no distinction between legislative and administrative decisions. Whether a party was “directly affected” depended on the pleadings, the relief sought, and the legal or economic consequences of the application. Davis j. further confirmed that Rule 3.15 should not be interpreted restrictively and that parties whose legal or financial interests would be directly affected by the outcome of the judicial review were required to be served.

Applying these principles, the Court concluded that the oil sands operators were directly affected. The Standard specifically identified the operators, established their financial security obligations, and the relief sought would directly affect those obligations. Justice  Davis held that the operators’ interests were immediate and individualized, rather than indirect or merely precedential, and distinguished authorities in which the alleged impact on third parties was contingent or remote.

The Court further held that compliance with Rule 3.15 was mandatory and that ACFN’s failure to serve the directly affected operators was fatal to the Application. Davis J. rejected ACFN’s submission that only portions of the Application should be struck, finding that every claim and form of relief was anchored to the impugned decision and would require the Director to revisit or alter that decision in a manner that affected the operators’ legal and financial interests. Justice Davis also rejected ACFN’s argument that its ultra vires claim fell outside Rule 3.15, holding that, in substance, the claim challenged the adequacy and content of the Standard rather than the Director’s authority to issue it. The Court therefore concluded that the entire Application, rather than only part of it, was subject to Rule 3.15 and struck it pursuant to Rules 3.15 and 3.68.