Should Carbon Dioxide Pesticide Registration Continue in Canada?

Official title: Consultation on Carbon Dioxide and its associated end-use products, Proposed Re-evaluation Decision PRVD2025-03

Closed Regulations & Permits Agriculture & Food Health & Safety
Health Canada reviewed carbon dioxide as a pesticide and proposes to keep it registered. It's used as a fumigant gas to kill insects in grain storage and rodents in aircraft. Some ship fumigation uses are being dropped because the manufacturer no longer supports them.

Why This Matters

This is a technical regulatory review that mostly affects grain storage facilities and aircraft maintenance operations. If you work in grain handling or pest control, the updated label requirements could change how you use this product.

What Could Change

Carbon dioxide will remain registered as a pesticide in Canada with updated label statements. Ship fumigation uses will be removed from the product label. New mitigation measures may be required for grain storage and aircraft fumigation.

Key Issues

  • Should carbon dioxide continue to be registered as a pesticide in Canada?
  • Are the proposed label updates and mitigation measures adequate?
  • Should ship fumigation uses be removed from registration?

How to Participate

  1. Review the Proposed Re-evaluation Decision to understand the science behind this regulatory decision.
  2. Submit comments to the PMRA Publications Section, referencing document PRVD2025-03.

What Happened

The consultation period has closed. Health Canada will publish a final Re-evaluation Decision on the Pesticides and Pest Management Reports and Publications page once the decision is finalized.

Key Documents