Ontario: Bill 5 Establishes Special Economic Zones Act, Grants Broad Exemptions

• Ontario's Bill 5, the Protect Ontario by Unleashing Our Economy Act, 2025, received royal assent on June 5, 2025, enacting the Special Economic Zones Act (SEZA).
• SEZA grants the cabinet broad discretionary authority to designate special economic zones, projects, and proponents, allowing exemptions from provincial statutes, regulations, and municipal bylaws.
• The Act does not mandate consideration of environmental protection, cumulative effects, or ecological thresholds when granting exemptions, leaving these to cabinet discretion.
• This legislation represents a significant shift in Ontario environmental law, moving from statutory safeguards to executive discretion and potentially creating regulatory variability.
• Bill 5 also amends or repeals several existing laws, including the Environmental Assessment Act and the Endangered Species Act (now Species Conservation Act, 2025).

The breadth of this exemption capability is particularly striking, as it is not confined to specific legislative or regulatory frameworks.

Ontario's legislative landscape underwent a significant transformation with the royal assent of Bill 5, officially known as the Protect Ontario by Unleashing Our Economy Act, 2025, on June 5, 2025. This comprehensive omnibus statute, designated S.O. 2025, c. 4, introduces extensive changes across various provincial legal domains, including development, infrastructure, energy, mining, and environmental regulation. The provincial government presented the legislation as a direct response to perceived threats to Canada's economic sovereignty, specifically citing actions by President Trump.

The Act's broad scope includes amendments to, or outright repeal of, several existing statutes, such as the Environmental Assessment Act, the Mining Act, and the Endangered Species Act, which has been superseded by the Species Conservation Act, 2025. However, among its many provisions, the most notable legal innovation is the establishment of the Special Economic Zones Act, 2025 (SEZA). This new framework introduces a distinct regulatory mechanism designed to streamline development within specific areas of the province.

The Special Economic Zones Act (SEZA) empowers the Lieutenant Governor in Council, and in certain instances, the responsible minister, to designate geographically defined areas within Ontario as "special economic zones" through regulatory means. The criteria for these designations are broadly outlined in Ontario Regulation 373/25. Within these designated zones, the government gains the further authority to identify specific undertakings as "designated projects" and to authorize "trusted proponents" to execute them.

A central feature of SEZA is the extensive SEZA cabinet exemption authority it grants. This power permits the cabinet to exempt designated projects or proponents, either partially or entirely, from a wide array of provincial statutes, regulations, and municipal bylaws. The breadth of this exemption capability is particularly striking, as it is not confined to specific legislative or regulatory frameworks. Crucially, SEZA does not mandate consideration of specific factors such as environmental protection, cumulative effects, or ecological thresholds before exemptions are granted. Instead, the precise scope and limitations of these exemptions are left to be determined through regulation and, ultimately, through the exercise of cabinet discretion.

The enactment of SEZA signifies a profound shift in Ontario environmental law executive discretion, moving away from a system rooted in statutory safeguards and towards one heavily reliant on executive decision-making. This reorientation has substantial environmental implications, as it allows the cabinet to modify or waive statutory protections that would otherwise apply, including those under the Environmental Assessment Act amendments Ontario, the Species Conservation Act, and various planning and conservation statutes. While environmental regulation is not automatically suspended within a special economic zone, specific regulatory action is required to exempt any legal requirements.

This framework introduces considerable variability and uncertainty into the regulatory landscape. Regulations that typically apply uniformly across the province may now differ significantly from one special economic zone to another, depending on how exemptions are drafted and enforced. This shift places a significant burden on the regulatory process to serve as the primary mechanism for environmental protection, departing from more concrete statutory parameters. The broader reorientation towards executive discretion also raises concerns regarding public accountability and the process of Indigenous consultation SEZA Ontario, as the traditional checks and balances inherent in statutory frameworks may be bypassed.

Lawyers advising on development, environmental compliance, or land use in Ontario must closely monitor the designation of Special Economic Zones and potential project-specific exemptions under SEZA. This introduces significant regulatory uncertainty, requiring proactive due diligence to understand which statutory safeguards may be waived and how this impacts project planning, risk assessment, and public/Indigenous consultation requirements.

Source: Original reporting via Gowling WLG