The first national conference on vessel, port and waterway technologies for the decade ahead is scheduled for Baltimore May 11-13.

The conference is sponsored by the U.S. section of the Permanent International Association of Navigation Congresses, based in Brussels, Belgium.Co-sponsors are the Maritime Administration, the National Waterways Conference, the American Association of Port Authorities and the Maryland Port Administration.

The conference will open on the evening of May 11. Its May 12 sessions will feature speakers on the future of various vessel types in international and domestic trades, terminals and intermodalism, and advances in information technology.

The concluding sessions May 13 will examine new dredging technology and problems in disposing of dredged material.

Keynote and lunch speakers include Alex Mandl, chairman and chief executive of CSX Technology; Robert de Paepe, president of the international association and secretary general of Belgium's Ministry of Public Works; John Sargent, senior manager for Costain Group PLC, London, and Fumio Okuyama, director general of the Bureau of Ports and Harbors for Japan's Ministry of Transport.

Registrations can be made with Tom Ballantine, executive secretary of the U.S. section of the international association, P.O. Box 33125, Washington, D.C. 20033-0125. (202) 355-3109.