This publication provides information on the available products and services from the Waterborne Commerce Statistics Center to be used by the Corps of Engineers, other Government agencies and private companies. Contents: Waterborne Commerce of the United States (WCUS), Parts 1-5; Transportation Lines of the United States; Summary of U.S. Flag Vessels; Transportation Lines - Vessels Master File Recorded on Computer Tape; Transportation Lines - Operator Master File Recorded on Computer Tape; WCSC Manuscript Data File Recorded on Computer Tape; Principal Ports Tonnage; Special Requests for Statistical Data; and The Reporting Responsibility for Commercial Waterborne Transportation.