The Canadian government has launched a consultation on the proposed ban of medium-chain (MCCAs) and long-chain chlorinated alkanes (LCCAs), substances widely used in industrial lubricants, metalworking fluids, and flame retardants. The public comment period, open until 13 April 2025, seeks industry input on banning their manufacture, import, and sale.
Published by Environment and Climate Change Canada (ECCC) and Health Canada, the proposal aims to expand the Prohibition of Certain Toxic Substances Regulations, 2012. The initiative also explores potential concentration thresholds for short-chain chlorinated alkanes (SCCAs) and new export controls under the Canadian Environmental Protection Act, 1999 (CEPA).
What Are Chlorinated Alkanes and Why Are They Regulated?
Chlorinated alkanes are used in metalworking, adhesives, plastics, and textiles due to their flame-retardant and lubrication properties. However, their persistence in the environment and potential human health risks have prompted regulatory action globally.
Several jurisdictions, including the European Union and the United States, have already restricted certain chlorinated alkanes due to concerns over bioaccumulation and toxicity. If Canada's proposal is adopted, companies will need to adjust supply chains and formulations to comply with new restrictions.
Key Elements of the Proposed Regulation
The consultation document outlines three primary objectives:
- Ban MCCAs and LCCAs (up to 20 carbon atoms) under the Prohibition of Certain Toxic Substances Regulations, 2012, restricting their manufacture, import, use, and sale.
- Set concentration thresholds for SCCAs and MCCAs to guide future regulatory limits.
- Expand export controls by adding SCCAs, MCCAs, and LCCAs to Schedule 3 of CEPA, restricting international trade of these substances.
The government emphasises that stakeholder input will shape the final regulatory measures.
Implications for Industry Stakeholders
Manufacturers, chemical suppliers, and industrial users must assess the impact of these proposed changes on their operations. Potential challenges include:
- Supply chain disruptions – Businesses relying on chlorinated alkanes for lubrication and flame retardancy may need alternative solutions.
- Regulatory compliance – Companies must track concentration thresholds and export restrictions to avoid penalties.
- Product reformulation – Industry players should explore non-toxic alternatives that align with upcoming restrictions.
Organisations should participate in the consultation process to ensure their interests and concerns are addressed.
Next Steps and How to Respond
The consultation period remains open until 13 April 2025. Companies should:
- Review the consultation document and assess potential business impacts.
- Submit feedback to Environment and Climate Change Canada before the deadline.
- Prepare for regulatory changes by identifying alternative chemicals and compliance strategies.
