Before the passage of federal environmental legislation in the 1970s and 1980s, DoD activities contaminated millions of acres of soil and water on and near DoD sites. The EPA has oversight authorities for cleaning up contaminants on federal property, and has placed 1,620 of the most contaminated sites -- including 141 DoD installations -- on its National Priorities List (NPL). As of Feb. 2009, after 10 or more years on the NPL, 11 DoD installations had not signed the required interagency agreements (IAG) to guide cleanup with EPA. This report examined: (1) the status of DoD cleanup of hazardous substances at selected installations that lacked IAGs; and (2) obstacles, if any, to cleanup at these installations. Figures. This is a print on demand publication.