Nanomaterials are being regulated in Canada under existing legislation including the Canadian Environmental Protection Act, 1999, the Pest Control Products Act, the Fertilizers Act, the Feeds Act and the Food and Drugs Act. It is recognised that, due to the unique properties associated with nanomaterials, the science surrounding the risk assessment of these substances needs to be developed further. To that end, the Federal Government is funding nanomaterial health and safety research within Canada, and actively participating in international efforts to study, quantify and understand the behaviour and toxicity of nanomaterials.
In June 2007, Environment Canada released a 'new substances program advisory' which announced that nanomaterials will be regulated under CEPA’s new substances notification regulations (chemicals and polymers). This meant that any nanomaterials not listed on the Canadian domestic substances list (DSL), or with "unique structures or molecular arrangements" compared to their non-nano counterparts, require a new substances notification package, including a risk assessment.
In July 2014, Environment Canada published a “New Substances Program Advisory Note 2014-02”. The purpose of this advisory note is to inform Canadian manufacturers and importers that new substances that fall within the nano-scale size range (1 -100 nanometres) must be notified under the New Substances Notification Regulations (Chemicals and Polymers).
Click here for further information from the Government of Canada.