The following Summary Report contains 81 Inter-Governmental Maritime Consultative Organization (IMCO) reports. These reports were prepared by numerous Corps of Engineers employees in 20 Corps districts and divisions which have coastal boundaries. There are 36 reports which represent the CY 1981 permitted dredged material ocean disposal activities conducted under authority of Section 103 of the Marine Protection Research and Sanctuaries Act of 1972. The remaining 45 reports represent the CY 1981 Corps of Engineers dredged material disposal activities as authorized by the United States Congress. (Author).