Canada, North American Free Trade Agreement…
“ Each Party shall, in adopting, maintaining or applying a sanitary or phytosanitary measure relating to the introduction, establishment, or spread of an animal or plant pest or disease, accord a good produced in a pest-free or disease-free area in the territory of another Party no less favorable treatment than it accords a good produced in a pest-free or disease-free area, in another country, that poses the same level of risk. ”
