Update: The lettuce recall described in this article was expanded to include product sold at Canadian Burger King and Pizza Hut locations. First it was just plain old lettuce, then it was California-grown lettuce, and now the latest from the Canadian Food Inspection Agency (CFIA) is that was lettuce from a grower who has signed onto the California Leafy Green Products Handler Marketing Agreement. In explaining how that lettuce contaminated with E. coli O157:H7 came across the border from the U.S., CFIA now points to how involvement in the Leafy Green Marketing Agreement (LGMA) is a quick ticket across the international border for California-grown lettuce. The idea is simple. Since the 115 California leafy green producers submit to a mandatory food safety program, they can check “Box 22” on their Confirmation of Sale’s (COS) document and enter Canada almost without slowing down.