The American Meat Institute (AMI) has called on the US government to clarify draft guidelines on how to operate a new labelling law, which will require the declaration of the name of the country where a food item originated. While processed meat products will not be subject to these country-of-origin rules, the AMI says Washington's proposals have badly defined what actually constitutes a processed product. They allow regulators to rely on their own subjectivity in deciding whether products have been "materially changed," says the trade group.