Regulatory agencies in the U.S.—including the Environmental Protection Agency (EPA) and the Food and Drug Administration—as well as regulatory agencies in the European Union and elsewhere in the world require chemicals, pesticides, pharmaceuticals, and many other products to be tested for toxicity. Animals are forced to ingest or inhale—or are injected with—toxic substances such as gasoline components and mercury. Animals used in these tests suffer extreme pain before they are killed, dissected, and thrown away like garbage.