The Canadian Food Inspection Agency (CFIA) has reinstated additional import requirements for romaine lettuce and products containing fresh romaine lettuce from the United States, effective September 30, 2021, and ending on December 31, 2021. These requirements, which were previously in place from October 7, 2020, to December 31, 2020, are a response to repeated E. coli outbreaks linked to these products in the past. The 2021 requirements include an option for preharvest testing.