How a Mine Is Permitted in Canada

Getting a mine approved in Canada is not one process with stages. It is two legal tracks resting on different statutes and answering to different governments, alongside a constitutional obligation that binds the Crown on both and belongs to neither. A project can finish the federal track holding nothing that lets it dig.

When the federal Act applies at all

The Impact Assessment Act does not apply to mining. It applies to a designated project, which section 2 defines as physical activities carried out in Canada or on federal lands and designated by regulations made under paragraph 109(b) or by ministerial order under subsection 9(1). Absent one of those routes there is no federal assessment to begin.

The regulations that designate are the Physical Activities Regulations. Item 18 of their Schedule catches a listed new mine at a stated capacity: coal at 5,000 tonnes per day of coal (as amended 2023, Minister of Justice, Canada) under 18(a), diamonds at 5,000 tonnes per day of ore (as amended 2023, Minister of Justice, Canada) under 18(b), a metal mine other than a rare earth element mine, a placer mine or a uranium mine at 5,000 tonnes per day of ore (as amended 2023, Minister of Justice, Canada) under 18(c), a rare earth element mine at 2,500 tonnes per day of ore (as amended 2023, Minister of Justice, Canada) under 18(e), and a stone quarry or sand or gravel pit at 3,500,000 tonnes per year (as amended 2023, Minister of Justice, Canada) under 18(f), the one figure stated over a year rather than a day.

Item 18(d) catches a metal mill other than a uranium mill at 5,000 tonnes per day of ore input (as amended 2023, Minister of Justice, Canada), measured on what it takes in rather than what it puts out. Uranium mines and mills have their own items further down. Item 19 catches an expansion of 50 percent of the area of mining operations (as amended 2023, Minister of Justice, Canada) or more where the capacity afterwards would also reach the item 18 figure, both limbs having to hold.

Designation runs both ways. Subsection 9(1) lets the Minister designate an activity the regulations do not prescribe where in the Minister's opinion it may cause adverse effects within federal jurisdiction or direct or incidental adverse effects, and subsection 9(7) forecloses that power once the activity has substantially begun. Subsection 16(2.1) runs the other way, letting the Agency require an assessment only where satisfied that effects of that kind may be caused.

The obligation that is not a stage

The commonest error here is to draw the federal process as a row of boxes and put consultation with Indigenous peoples in one of them. Nothing in the Act supports that shape, and the evidence is where the requirement appears.

It is in the mandate provision, subsection 6(2), which requires the Government of Canada, the Minister, the Agency and federal authorities to exercise their powers under the Act in a manner that respects the rights of the Indigenous peoples of Canada recognized and affirmed by section 35 of the Constitution Act, 1982. It is there before a designated project exists, at paragraph 9(2)(b). It is in the planning phase three times, at section 12, subsection 15(1) and paragraph 16(2)(c), the last making adverse impact on those rights a factor in whether an assessment happens at all. It is in the assessment at paragraph 22(1)(c), in the panel referral at paragraph 36(2)(d), and at paragraph 63(a), first of the three factors on which a public interest justification must be based.

Paragraph 33(1)(d) carries it through substitution, letting another jurisdiction's process stand in only if that process will include consultations with any Indigenous group that may be affected. Provincial statutes carry it too. The conditions gating the start of mine production under subsection 141(1) of the Ontario Mining Act are numbered, the third is that the Minister is satisfied that appropriate consultation with Aboriginal communities has been carried out, and the fourth opens by requiring that the second and third have been met already.

A requirement appearing at all of those points is not a step between two other steps. What this page does not state is the content of the constitutional obligation itself, which arises under section 35 and is worked out in decided cases rather than in either statute quoted here. No judgment was retrieved for this build.

The track that issues the instrument

Nine of the twelve jurisdiction records here gate production with a lease or a permit under a provincial Act, and what separates them is which moment the instrument catches. British Columbia catches the earliest: subsection 10(1) of the Mines Act requires a permit from the chief permitting officer before any work in, on or about a mine, with a plan for the work and a programme for reclamation filed as part of the application.

A second group catches production instead. Section 100 of the Quebec Mining Act bars mining anything but surface mineral substances without a mining lease, and its section 101 makes an approved rehabilitation plan and an Environment Quality Act authorization conditions of granting one. Subsection 63(1) of the Nova Scotia Mineral Resources Act and section 67 of the New Brunswick Mining Act each bar production otherwise than under a lease. Section 13 of Saskatchewan's Crown Minerals Act bars extraction from Crown mineral lands except under a Crown lease, and subsection 54(1) of the Alberta Mines and Minerals Act bars winning, working or recovering a Crown mineral without authorisation. Section 31 of the Newfoundland and Labrador Mineral Act inverts the form, conferring a right to a lease on a licence holder who applies in time.

A third group makes the final gate documentary. Subsection 141(1) of the Ontario Mining Act ends its list with the Minister confirming in writing that a closure plan is filed, so the moment is dateable. Subsection 111(1) of the Manitoba Mines and Minerals Act requires notice, plans and a closure plan to be filed with the director at least 60 days before the scheduled start, and subsection 111(2) bars commencement until the director has dealt with them.

Nunavut is the exception, because tenure there is federal: section 7 of the Nunavut Mining Regulations, made under the Territorial Lands Act, makes a lease the condition of production from a recorded claim. A summary that speaks of one provincial mining permit flattens a permit gating work into a lease gating sales.

Where the two tracks meet, and where they do not

They meet through prohibitions rather than approvals. Subsection 7(1) bars the proponent of a designated project from any act in connection with carrying it out that may cause adverse effects within federal jurisdiction, and subsection 7(3) lifts that bar in three defined circumstances, one being compliance with a decision statement issued under section 65. Section 8 bars a federal authority from exercising a power under any other Act of Parliament that could permit the project, and from funding it, and section 5 binds the Crown in right of Canada and of a province alike.

Section 65 sets out what that decision statement contains: the determination made under subsection 60(1) or section 62 with reasons, the conditions established under section 64, a period under subsection 70(1), and a description of the project. Nothing in that list records a claim, grants a lease or authorises anyone to remove ore. The federal instrument lifts a prohibition. The provincial instrument confers the right.

There is machinery for running the two together. Section 21 obliges the Agency, or the Minister where a review panel is involved, to offer to consult and cooperate with other jurisdictions that have assessment functions, and section 31 lets the Minister approve the substitution of a provincial process, subject to section 32 and the conditions in section 33. The agency states the aim as "one project, one review" on a page that also says the Act prevails over anything written there. That reduces duplicated assessment work rather than merging two authorisations into one.

What the amendment record shows and does not settle

The consolidation used throughout this page is current to June 21, 2026 and was last amended on May 29, 2026. Its citation lines record that much of the operative text was amended by chapter 17 of the Statutes of Canada, 2024: the definitions, the purpose, both prohibitions, the designation power, the planning phase provisions in sections 15 and 16, substitution in sections 31 to 35, and decision making in sections 60 to 64.

Some of that is visible in the text as it now reads. The defined term for effects within federal jurisdiction was repealed, and the Act works instead from adverse effects within federal jurisdiction, each limb expressed as a non negligible adverse change. Subsection 7(1) now bites only where the act may cause such effects, and subsection 6(1) states the purpose as preventing or mitigating significant adverse effects within federal jurisdiction.

A reference concerning this Act was answered by the Supreme Court of Canada in 2023. No copy of that opinion was retrieved here, so this page states neither what the Court decided nor why Parliament legislated afterwards. A consolidation records which chapter amended which section and no reasons at all, and reading a reason off an amendment line is inference wearing the clothes of a citation.

So the position is unsettled and this page leaves it that way. Whether the amended scheme sits within federal legislative authority is answered by no document retrieved here, and a judicial determination on the amended text is what would settle it. Refusing to pick a side while the record is silent is a standing habit of our coverage of Canadian industry, and here it is the difference between a summary that holds and a fluent sentence about constitutional law that nobody on this desk can write.

The periods the Act states, and the time it does not

The planning phase has a stated limit. Subsection 18(1) requires the Agency to give notice of the commencement of the assessment within 180 days after it posts the project description under subsection 10(2). Subsection 18(3) allows 90 days more for cooperation with another jurisdiction, and subsection 18(5) allows suspension until a prescribed activity is finished.

Then the clock leaves the Agency. Subsection 19(1) gives the proponent three years from the posting of that notice to provide the information and studies it sets out, subsection 19(2) lets the Agency extend that by whatever period is necessary, and section 20 terminates the assessment if the material never arrives. That span is controlled by the party being assessed.

The assessment proper runs from the notice under subsection 19(4) that the material is complete. Subsection 28(2) requires the final report to reach the Minister no later than 300 days after that notice is posted, subsection 28(6) lets the Minister add up to 90 days, and subsection 28(7) lets the Governor in Council add whatever is necessary with no figure attached. Where the Minister refers the matter to a review panel, which subsection 36(1) allows within 45 days of the commencement notice being posted, subsection 37(2) caps the limits set under subsection 37(1) at 600 days unless more time is needed, and subsections 37(3) and 37(4) repeat that pair of extensions. Subsection 65(3) allows 30 days to issue the decision statement, or subsection 65(4) allows 90 where the Governor in Council determined the matter.

Those are periods, each running from a posting event rather than from the day a project was conceived, several suspendable and three extendable without a stated cap. It is a structure of deadlines and it is not a duration. How long assessments actually take is not established here, because no document retrieved for this build reports elapsed time for any project. Sections 104 to 106 establish the Canadian Impact Assessment Registry and a project file for every designated project, and the postings they hold are where an answer would have to be built.

Two jurisdictions this page cannot describe

Yukon and the Northwest Territories are covered on the federal assessment side and on no other side. For Yukon that means its assessment Act of 2003 and the board that Act establishes, both listed below under their full titles. For the Northwest Territories it means the Mackenzie Valley Resource Management Act, which the Impact Assessment Act reaches back into at section 40.

None of those instruments records a claim, grants a lease or lets anyone take ore. Both territorial records here carry no mining statute and no named regulator, because the government hosts that would supply them refused every automated request or did not answer. That is a retrieval outcome and not a finding about territorial law, and it is why this page stops at the federal layer for those two. Every other jurisdiction reached from the mining section is described here from a document that was read.