The Canadian Food Inspection Agency (CFIA) will require importers to either provide proof that romaine lettuce destined for import into Canada does not originate from counties in the Salinas Valley, or provide an official certificate of analysis from an accredited laboratory confirming that the lettuce has below-detectable levels of E. coli

Link:  https://www.canada.ca/en/food-inspection-agency/news/2020/09/new-import-requirement-romaine-from-parts-of-california-must-be-tested-for-e-coli.html