1981 Oil Spill Conference Mar. 2-5 Sponsored by the American Petroleum Institute, Environmental Protection Agency, and U.S. Coast Guard. Atlanta Hilton Hotel, Atlanta, GA. Contact 1981 Oil Spill Conference, Suite 700, 1629 K Street N.W., Washington, DC 20006; (202) 296-7262.

Shipboard Management Seminar Mar. 10-13 Sponsored by Maine Maritime Academy. Maine Maritime Academy, Castine, Maine. Contact Capt. George M. Marshall, Center for Advanced Maritime Studies, Maine Maritime Academy, Castine, ME 04421; (207) 326-4311.

4th Latin American Dredging Congress Apr. 6-10 Sponsored by the Latin American Dredging Association. Camino Real Hotel, Mexico City, Mexico. Contact John Huston, P.O. Box 6372, Corpus Christi, TX 78411; (512) 853-6512.

International Shipboard Habitability Design Conference Apr. 7-9 Sponsored by The Society of Naval Architects and Marine Engineers. Howard Johnson Motor Lodge, Arlington, Va. Contact Joseph E. Castle, chairman, SNAME Habitability Conference, P.O. Box 2194, Arlington, Va.; (202) 692-1591.

211th Annual Dinner Apr. 13 Sponsored by The Marine Society of the City of New York. Hotel Plaza, New York City. Contact Mrs. Charlotte Mills at the Society, 80 Broad Street, New York, N.Y. 10004; (212) 425-0448.

Offshore Technology Conference May 4-7 Sponsored by The Society of Naval Architects and Marine Engineers and 11 other technical societies. Astrodomain, Houston. Contact OTC, 6200 North Central Expressway, Dallas, TX 75206; (214) 361-6604. (Preview in April 1 issue of MR/EN)

Nor-Shipping '81: The 8th International Shipping Exhibition May 11-16 Organized by Norges Varemesse (The Norwegian Fair Organization). The Sjolyst Centre, Oslo, Norway. Contact Mrs. Else-Marie Gehrken, Norges Varemesse, P.O. Box 130 Skoyen, Oslo 2, Norway; telex 18748.

Propellers '81 Symposium May 26-27 Sponsored by SNAME under the auspices of the Hampton Roads Section. Cavalier Hotel, Virginia Beach, Va. Contact Andrew Szypula, CTD, Bethlehem Steel, Sparrows Point, MD 21219; (301) 477-6832. (Preview in May 15 issue of MR/EN)

Portex '81: International Port Exhibition and Conference May 26-30 Organized by Hamburg Messe und Congress GmbH, and sponsored by the Senate of the Free and Hanseatic City of Hamburg. Exhibition Grounds, Hamburg, West Germany. Contact Hans J. Rathje, The Hamburg Group, 545 Madison Avenue, New York, N.Y. 10022; (212) 758-4651. (Preview in May 1 issue of MR/EN)

MARSIM '81: Second International Conference on Marine Simulation June 1-5 Cosponsored by the National Maritime Research Center, and others. U.S. Merchant Marine Academy, Kings Point, N.Y. Contact MARSIM '81, National Maritime Research Center, Kings Point, N.Y. 11024; (516) 482-8200.

8th Ocean Energy Conference June 7-11 Sponsored by the U.S. Department of Energy, and organized by The Marine Technology Society. Capital Hilton Hotel, Washington, D.C. Contact MTS, 1730 M Street N.W., Washington, D.C. 20036; (202) 659-3251.

XV Biennial Conference June 7-12 Sponsored by the International Cargo Handling Coordination Association. Edmonton Plaza Hotel, Edmonton, Alberta, Canada. Contact Peter J. Elias, conference administrator, 418 Legislative Building, Edmonton, Alberta, Canada; (403) 427-2080.

ICE TECH '81: SNAME Spring Meeting/STAR Symposium June 16-19 Sponsored by The Society of Naval Architects and Marine Engineers, and hosted by the Eastern Canadian Section. Chateau Laurier Hotel, Ottawa, Ontario, Canada. Contact SNAME, One World Trade Center, Suite 1369, New York, N.Y. 10048; (212) 432-0310. (Preview in May 1 issue of MR/EN)