Canada Requests Information on 200 Substances under the Chemicals Management Plan

On 29 August 2026, Environment and Climate Change Canada and Health Canada published two mandatory information-gathering notices under section 71 of the Canadian Environmental Protection Act, 1999 (CEPA).

The notices form part of the Chemicals Management Plan (CMP) and cover 200 substances that Canada has identified as priorities for further assessment and potential risk-management action.

The information collected will support decisions on substance prioritisation, risk assessment and possible risk-management measures. It will also help the Government understand the commercial status, uses and potential releases of the listed substances in Canada.

Two reporting phases

The information-gathering exercise is divided into two phases:

• Phase 1: covers 184 substances. The reporting period began on 29 August 2026, and submissions are due by 3 March 2027.
• Phase 2: covers 16 substances. The reporting period begins on 4 March 2027, and submissions are due by 8 September 2027.

Businesses that meet the reporting criteria must submit a section 71 response through Environment and Climate Change Canada’s Single Window Information Management reporting system.

Who may need to report

The notices apply to Canadian manufacturers, importers and users that meet the relevant activity, quantity and concentration criteria during the reporting year.

Companies may need to assess whether reportable substances are present in mixtures, products or manufactured items. Depending on the substance and activity, the required information can include quantities, concentrations, uses, functional purpose, customer information and facility data such as releases.

The main quantity thresholds are generally above 100 kg or above 1,000 kg, depending on the substance and the relevant part of the notice. Import of a substance in a mixture, product or manufactured item may also be reportable where the applicable concentration threshold is met.

Why early review matters

The notices cover a large number of substances and may affect companies in a wide range of sectors. Determining whether a substance is present in an imported product or manufactured item can require detailed information from suppliers outside Canada.

Companies should review the schedules to the notices, screen their manufactured, imported and used products, and begin collecting supplier information early. A full material declaration or comparable substance-data system can help businesses assess their reporting obligations and prepare a complete response.

Source: Government of Canada, Information gathering with respect to certain substances under the Chemicals Management Plan ; Guidance document for responding to the 2026 CMP notices ; and the Canada Gazette notices .