The European Union is weighing a proposal that would require electronics makers to take responsibility for their products once their useful lives are over, with the intent of encouraging companies to design products that are more recyclable. Computers, cell phones, medical equipment, and household appliances would all be affected. The proposed legislation would also require manufacturers to eliminate certain heavy metals, including lead and mercury, from all new products as of 2004. The U.S.-based Campaign for Responsible Technology is backing the legislation, arguing that it would set a benchmark for electronics sold in the U.S. as well.