Should an Industrial Chemical Used in Ship Paints Be Listed as Toxic?

Official title: Publication of summary of the updated draft assessment of phenol, methylstyrenated (MSP), CAS RN 68512-30-1, specified on the Domestic Substances List and of Ministerial Statements (section 77 of the Canadian Environmental Protection Act, 1999)

Open Regulations & Permits Environment & Climate Health & Safety
The government wants to add a chemical called MSP (phenol, methylstyrenated) to Canada's toxic substances list. MSP is used in paints and coatings for ships and large equipment. Studies show it can harm aquatic life and doesn't break down easily in the environment. The government is asking for public input before making a final decision.

Why This Matters

This chemical ends up in waterways when ships are painted or maintained. If you fish, swim, or get drinking water from lakes and rivers, you have a stake in how toxic substances are managed. Adding MSP to the toxic list would trigger stricter controls on how it's used and disposed of.

What Could Change

If approved, MSP would be added to Schedule 1 of the Canadian Environmental Protection Act. That means the government could impose new rules on how the chemical is manufactured, imported, used, and disposed of. Industries using MSP in ship paints would face stricter requirements.

Key Issues

  • Should MSP be added to Canada's list of toxic substances?
  • What risk management measures should apply to MSP?
  • Is the scientific assessment of MSP's environmental risks accurate?

How to Participate

  1. Review the updated draft assessment and the revised risk management scope document to understand the proposal.
  2. Submit your comments by email to substances@ec.gc.ca, citing Canada Gazette, Part I, January 17, 2026.
  3. Alternatively, submit through Environment and Climate Change Canada's Single Window) online reporting system.

Submit Your Input

Submit Via Eccc Single Window Draft Email
Questions Being Asked (3)
  1. Do you agree with the proposed conclusion that MSP meets the criteria for toxicity under section 64 of CEPA?
  2. What are your views on the scientific considerations in the draft assessment?
  3. What risk management options should be considered for MSP?

Key Documents