Canada Requires CEPA Section 71 Reporting for 184 Priority Substances Image

Canada Requires CEPA Section 71 Reporting for 184 Priority Substances

Date
04 Sep 2026

Reference source : Canadian Gazette

On August 29, 2026, Environment and Climate Change Canada (ECCC) published a mandatory information-gathering notice under section 71 of the Canadian Environmental Protection Act, 1999 (CEPA). This notice is part of Phase 1 of the 2026 activities under the Chemicals Management Plan (CMP) and covers 184 priority substances.

The information collected will support Environment and Climate Change Canada and Health Canada in determining whether these substances are toxic or capable of becoming toxic under CEPA and will inform further risk assessment and risk management activities, where required.

Companies that meet the reporting criteria must provide information relating to their activities during the 2025 calendar year. The reporting deadline is March 3, 2027.

Who Is Required to Report?

The reporting requirements depend on how the substances are categorized. The general threshold for each category is shown in the table below.

Category

General Threshold

Substances

Part 1

More than 100 kg

133

Part 2

More than 1,000 kg

36

Part 3

More than 100 kg for specified applications

7

Part 4

More than 100 kg; additional use activities covered

8

For Part 1 and Part 4 substances, reporting generally applies where more than 100 kg was manufactured, imported, or used in 2025. For Part 2 substances, the applicable threshold is generally more than 1,000 kg.

The notice can also apply to imported mixtures, products, and certain manufactured items where a listed substance is present at 0.1% by weight or more, provided the applicable quantity threshold is met. Relevant products may include children's goods, clothing, footwear, bedding, furniture, mattresses, flooring, and certain food-contact articles.

Part 3 substances are subject to more specific conditions. Reporting applies to identified uses such as cleaning and degreasing products, automotive coatings, furniture and mattress foam, fuels, brake fluids, and certain food-contact applications.

What Information Must Be Submitted?

Depending on the substance and activity, companies may need to provide information on quantities manufactured, imported, used, or exported; substance concentrations; commercial and consumer uses; substance functions; facility activities; NAICS codes; and potential releases to air, water, or land.

The notice may also require information on relevant unpublished studies or data that have not previously been submitted to the Government of Canada under the specified reporting mechanisms.

Certain exemptions apply, including some substances in transit through Canada or those regulated under other specified federal regimes. Companies that do not meet the mandatory reporting criteria but have an interest in a listed substance may submit a Declaration of Stakeholder Interest. A Declaration of Non-Engagement may also be submitted where applicable.

What Should Companies Do?

Companies manufacturing, importing, or using chemicals in Canada should:

  1. Screen inventories against the 184 substances covered by the notice.

  2. Review 2025 quantities against the 100 kg or 1,000 kg thresholds.

  3. Check imported products for substances present at 0.1% w/w or above.

  4. Review whether Part 3 substances are used in specified applications.

  5. Collect relevant quantity, concentration, use, facility, release, and study information.

  6. Prepare submissions before the March 3, 2027, deadline.

Early preparation is recommended, particularly where companies need to obtain composition or supply-chain information from suppliers


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