New CEPA framework
The framework goes deeper into how nanomaterials are identified, characterised, and assessed. That includes factors such as particle size distribution, surface chemistry, agglomeration, structure, behaviour, and lifecycle.
The Canadian Environment and Climate Change and Health Canada framework explains that nanoscale substances can behave differently from their bulk counterparts. Traditional safety data may not always apply in the same way.
Risk assessments rely on physical and chemical properties, testing, modelling, read-across information, and expert judgment.
Nano-specific assessments
Canada is not creating a separate regulatory system for nanomaterials. Existing chemical frameworks are being adapted with nano-specific requirements and considerations.
The framework places stronger attention on:
- Size and surface characterisation
- Exposure assessment
- Lifecycle assessment
- Scientific justification and supporting data
Different nanoforms of the same substance may need separate consideration if their properties or behaviour differ.
Impact on Cosmetics
The update goes beyond a local Canadian change. The framework points toward OECD-aligned global standards and reflects a broader regulatory direction already affecting advanced materials in several markets.
For cosmetic manufacturers and regulatory teams, this can affect how materials are selected, tested, documented, and assessed for market access in North America.
The framework signals a growing focus on nano-specific evaluation under existing chemical legislation, especially for substances used in cosmetics and other consumer products.
