Thank you once again for your question.
The precautionary principle features prominently in all of Health Canada's activities to identify the level of risk related to a certain product or chemical. It is entrenched in the Canadian Environmental Protection Act. As I mentioned, that is the basis for many of Health Canada's legislative programs.
We've also introduced, through our risk assessments, uncertainty factors that allow for uncertainty and precaution when Health Canada comes up with a toxicity value. A good example of precaution is the PFAS example I just spoke to. The Government of Canada had been looking at a chemical-by-chemical approach but recognized the large chemical.... The drinking water objective brings together that broad class, using precaution as a basis, to protect Canadians from exposure to PFAS in drinking water.