The regulatory framework governing mining in Ontario is complex, with multiple provincial and federal regulators overseeing different aspects of a mining project throughout its lifecycle. At Licata Law, our lawyers help mining companies navigate these complex, intertwining regulations.
Key Regulatory Bodies
Provincial Regulators
The Government of Ontario plays the most direct role in regulating mining activities through The Mining Act. Key regulatory bodies in Ontario include:
- The Mines and Minerals Regulation Division/The Ministry of Energy and Mines (The Mining Act)
- The Ministry of the Environment, Conservation and Parks (The Environmental Protection Act, The Environmental Assessment Act, The Ontario Water Resources Act)
- The Ministry of Natural Resources (The Public Lands Act)
- The Ministry of Labour (The Occupational Health and Safety Act)
Other regulatory bodies and ministries, like the Ministry of Heritage, Sport, Tourism and Culture Industries and the Ministry of Transportation, may also influence the viability of a mining project.
Federal Regulators
Federal regulators also have significant sway over mining in Ontario. The key federal regulators mining companies should be aware of are:
- Fisheries and Oceans Canada (Fisheries Act)
- Environment and Climate Change Canada (Canadian Environmental Protection Act, Metal and Diamond Mining Effluent Regulations)
- Impact Assessment Agency of Canada (Impact Assessment Act)
- Innovation, Science and Economic Development Canada (Investment Canada Act)
- Global Affairs Canada (Export and Import Permits Act, Special Economic Measures Act)
- Natural Resources Canada (Explosives Act)
- Transport Canada (Canadian Navigable Waters Act)
Not all of these federal regulators are involved in every mining project; the Fisheries Act will only be applicable if mining activities could impact fish or fish habitats, while the Canadian Navigable Waters Act may only affect projects that could impact rivers, water crossings, and shipping routes.
A mining finance lawyer at our firm can help you navigate the regulatory frameworks laid out by the Investment Canada Act, the Special Economic Measures Act, and other relevant acts from Canadian regulators.
All About Licences And Permits
The Ontario Mining Association offers a broad overview of permitting requirements on its Mining 101 page.
On that page, you can find a breakdown of the dozens of permits that it takes to open, operate, and close a mine – and the regulators responsible for each permit. Though the names of some of the regulators are slightly outdated, it offers an excellent glimpse at the sheer number of licences and permits it may take to see a mining project through its lifecycle.

Environmental Assessment Requirements
Provincial EA Process
Environmental assessments in Ontario are conducted as a part of the Environmental Assessment Act. Environmental assessments are studies to assess the potential environmental impacts of a project.
In Ontario, mining projects are not always required to undergo environmental assessments. Projects that are designated for review by the Ministry of the Environment, Conservation and Parks or those that fall within prescribed categories under the Environmental Assessment Act, must, however, undergo an environmental assessment.
The triggers for an environmental assessment can be hard to determine, and a sudden environmental assessment can grind a project to a halt. For these reasons, many companies opt into voluntary agreements to undergo environmental assessments with the Ministry of the Environment, Conservation and Parks.
To learn how to conduct an environmental assessment, you can review the Government of Ontario’s Preparing Environmental Assessments page.
Federal Impact Assessment (For Larger Projects)
Larger mining projects may trigger a review under the Government of Canada’s Impact Assessment Act. Federal impact assessments determine the potential benefits and drawbacks of a project, then propose actions stakeholders in the project can take to minimize adverse effects and maximize benefits.
Impact assessments touch on potential environmental, economic, health, and social benefits and harms; under the IAA, regulators can impose mitigation measures on stakeholders to ensure that adverse effects are minimized. These mitigation measures must be implemented and are legally binding.
First Nations Consultation Obligations
Duty To Consult Framework
The Crown – whether that be the Province of Ontario or the Government of Canada – has a duty to consult with Indigenous communities before projects that could directly affect those communities are undertaken.
Practically, the Crown often requires mining project proponents to undertake some procedural aspects of consultation. Proponents may be asked to engage with communities, share information with those communities, and take steps to mitigate the negative impacts of mining activities.
The Government of Ontario provides a detailed consultation framework that stakeholders in a mining project can review.
Impact Benefit Agreements
Impact benefit agreements are legally binding agreements that set the terms for how the proponents of a mining project and an Indigenous community will collaborate and cooperate on the project. These agreements may involve financial remuneration to the Indigenous community. More and more frequently, they may also include provisions regarding:
Not all mining projects require an impact assessment agreement; these legally binding agreements can, however, secure community buy-in and stave off potential costly delays.
Penalties For Non-Compliance
The penalties for non-compliance with mining regulations vary substantially depending on which regulations were violated and the severity of the violations. Non-compliance can lead to costly delays, fines, and even criminal charges.
How Licata Law Can Help
We have experience navigating the complex regulatory landscape governing mining projects in Ontario. We can help our clients understand regulations, draft and review materials slated to be submitted to regulators, and provide assistance should a regulator pursue administrative or legal penalties.
Looking for a mining lawyer in Ontario? Contact Licata Law today.