The FDA's involvement The FDA controls foods other than meat and poultry products controlled by the USDA, as permitted by the federal Food, Drug, and Cosmetic Act and the Public Health Service Act. The FDA is also in charge of medicine, medical device, biologics, animal feed, pharmaceuticals, cosmetics, and radiation-emitting equipment safety. It also has jurisdiction over chemical substances used in food or drug manufacturing. FDA regulations are the highest level of protection for consumers who use their judgment rather than relying on government warning labels or artificial ingredients found in many processed foods. The agency requires that all food sold in the United States be proven to be safe for human consumption before it can be marketed. The agency also ensures that contaminated food is removed from store shelves. In addition to regulating food manufacturers, farmers, ranchers, and fish farmers; handlers of imported food; and distributors/sellers of prepared food; they also monitor restaurant compliance with health standards. Finally, they provide consumer information on how to choose safe foods and avoid food hazards. Through research and development, inspection, and coordination with other agencies, the FDA works to prevent contamination of food supplies. They do this by requiring those who produce or import foods to ensure that them is safe before it reaches market, by taking action against companies that violate safety rules, and by providing information on what foods should be kept away from children and others at risk for eating problems. The FDA uses several methods to inspect businesses.