Industry's accelerating emission of heated wastes to the environment poses hazards that have triggered an acute awareness and concern on the part of the public, the policy makers and industry itself. Establishment of State-Federal water quality standards brings the concern into sharp focus. The waters of the nation cannot accept heated wastewaters without quality degradation and human sacrifice of beneficial uses. Adding to the problem is the increasing lead time required for delivery of heavy power generating equipment and other industrial machinery, causing hurried management and public policy decisions on plant siting, design and equipment that will have long-range impact on the environment. This Industrial Waste Guide on Thermal Pollution seeks to assist State, Federal and local regulatory personnel, community and regional planners and industrialists in making sound decisions. The literature contains much information on thermal pollution.