I am--a coalition--but I'm most familiar with the pre-market registration process for disinfectants.
In terms of disinfectants, for example, if I wish to use a new substance, truly new to Canada, I have to go through Environment Canada and apply for an NSN. That data package will be reviewed by Health Canada and Environment Canada, and I will be given an NSN number.
However, if I want to market a disinfectant, I have to have the end-use product, such as my can of Lysol, reviewed by Health Canada.