The U.S. Environmental Protection Agency (EPA) has sent a letter to Congress in support of reinstating the old and lapsed Superfund polluter pays taxes. Superfund is the federal government’s program that investigates and cleans up the nation’s most complex, uncontrolled or abandoned hazardous waste sites. If reinstated, the Superfund tax would provide a stable, dedicated source of revenue for the program and increase the pace of Superfund cleanup. It would also ensure that parties who benefit from the manufacture or sale of substances that commonly cause environmental problems at hazardous waste sites, and not taxpayers, help bear the cost of cleanup when responsible parties cannot be identified.