ABSTRACT The U.S. Congress has directed NASA to conduct an assessment of the potential use of space technology in the monitoring of oil spills and ocean pollution. As a result, laboratory studies, aircraft missions, and spacecraft studies are underway to perform this assessment with the cooperation of the U.S. Coast Guard, the Environmental Protection Agency, the Bureau of Land Management, the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, and the Canada Centre for Remote Sensing. Primary emphasis in the space system will be directed toward all-weather remote sensing and surveillance in which the space system would provide information to regulatory agencies for closer investigation with aircraft or ships. Laboratory and aircraft missions will be directed toward understanding and obtaining simultaneous microwave and optical imagery of oil spills on the sea with instruments of potential usefulness in the modeling of the movement of spills, along with detection and surveillance image definition. This paper summarizes the status of these efforts as of late 1978. Initial results of the required assessment should be available by the end of 1979.