of agricultural land, or about four times as much as Ontario. Because much of the land is better suited for cattle grazing than crop growing, it raises 40 percent of the cattle in Canada—about five million head. The other three western provinces are also well-endowed with land fit for grazing, so nearly 90 percent of Canadian beef cattle are raised in Alberta and the other western provinces. Alberta is outside the corn belt because the climate is generally too cool and too dry to grow corn for grain. The adjacent western provinces and northern US states are similar, so the use of corn as cattle feed has been limited at these northern latitudes. As a result, few cattle are raised on corn as a feed. The majority are raised on grass and finished on cold-tolerant grains such as barley. This has become a marketing feature of the beef. The Alberta beef label found on some beef is not an indication of origin; this is a brand that only indicates that the beef was processed in Alberta. A percentage of the cattle have been raised in other western provinces or in the northwestern United States. These cattle are generally processed similarly, and are said to be distinct from the typically corn-fed beef produced in most of the US and Ontario. Under World Trade Organization rules, all of the beef produced in Alberta can be considered to be Alberta beef. United States According to the United States Department of Agriculture (USDA) there are 25–33 million feed cattle moving through custom and commercial cattle feedyards annually. The monthly USDA "Cattle on Feed Report" is available for public viewing. Labelling The USDA's Agricultural Marketing Service (AMS) released a revised proposal for a grass-fed meat label for its process-verified labelling program in May 2006. This established a standard definition for the "grass-fed" claim which required continuous access to pasture and animals not being fed grain or grain-based products. The Union of Concerned Scientists, which in general supported the labelling proposal, claimed that the label, which contained the clause "consumption of ... grain in the immature stage is acceptable", allowed for "feed harvesting or stockpiling methods that might include significant amounts of grain" because the term "immature" was not clearly defined. The label was revoked by the USDA on January 12, 2016, claiming it had no jurisdiction over what should be FDA regulations. Until 2015, the