Leasing Digest Flexi School, three-day course on evaluating, structuring and marketing leases from a U.K. base, April 27-29. Swallow Hotel, Waltham Abbey, Essex, England. Contact: Vic Lock or Caroline Smith, leasing digest conferences, Euromoney Publications PLC, Nestor House, Playhouse Yard, London EC4V 5EX, England. Telex: 01-236-3288.

1988 Conference on Grain Car Availability, sponsored by Irving Trust Co., R.L. Banks & Associates Inc. and Railcar Supply Council, May 1-3. Westin Crown Center Hotel, Kansas City. Contact: Bonnie Helidan of Irving Trust, (212) 655-7572.Traffic Club of Newark, motor carrier night, May 3. Town & Campus, West Orange, N.J. Contact: Sal Accardi (201) 465-1550.

National Private Trucking Association, regional workshop on private truck management, May 4-5. Sheraton Hopkins Hotel, Cleveland. Contact: NPTA, 1320 Braddock Place, Suite 720, Alexandria, Va. 22314 (703) 683-1300.

International Animal Transportation Conference, May 8-11, 1988, Amsterdam, The Netherlands. Contact: in North America, Dale Anderson (301) 292-1970; in Great Britain, Graham Joss (0737) 822249 and in Amsterdam, Weitze Aardema (020) 492118.

National Association of Rail Shippers, transportation seminar, May 10-12. Hyatt Regency Hotel, Minneapolis, Minn. Contact: Martha McManus Kappel, director, shipper relations, Association of American Railroads, 50 F Street, N.W., Room 6400, Washington, D.C. 20001 (202) 639-2378.

Women's Transportation Seminar, annual conference, May 11-13. Marriott Centre City, Minneapolis, Minn. Contact: Louise Morris, executive secretary, WTS, Box 7408, Ben Franklin Station, Washington, D.C. 20044. (703) 256-5258.

American Trucking Associations, complying with safety regulations seminar, May 12. Hilton Inn West, Oklahoma City, Okla. Contact: ATA, 2200 Mill Road, Alexandria, Va. 22314. (703) 838-1725.

Air/Space America, World Trade Exposition and Air Show, May 13-22, 1988. Brown's Field, San Diego, Calif. Contact: Steck Barker, Air/Space America, 6110 Friars Road, San Diego, Calif. 92108. (619) 294-8808.

American Institute for Shippers' Associations, 28th annual meeting, May 15-18. Contemporary Resort, Walt Disney World, Orlando, Fla. Contact: Carole Lipsitz, executive assistant, AISA, Madison National Bank Building, P.O. Box 33457, Washington, D.C. 20033. (202) 628-0933.

American Trucking Associations, six steps to safety seminar, May 17-19. Compri Hotel, Alexandria, Va. Contact: ATA, 2200 Mill Road, Alexandria, Va. (703) 329-2323.