BALTIMORE

For more information, call the Baltimore Area Convention and Visitors Association at (410) 659-7300 within Maryland or (800) 343-3468 outside Maryland.

April 25-26 National Diocesan Attorneys Association, Hyatt Regency. Contact: Mary Ann White. Estimated attendance: 200.

April 25-27 Hitachi Business Systems, Stouffer Harborplace Hotel. Contact: Ingrid Schneider. Estimated attendance: 300.

April 25-27 Texas Instruments,users conference process system, Hunt Valley Inn. Contact: Marcia McCutchen. Estimated attendance: 200.

April 27-May 1 National Association of Health Services Executives, Baltimore Marriott. Contact: Renee Frazier, 11608 Reisterstown Road, Owings Mills, Md. 21136. Attendees: 500.

May 1-4: Technical Association of the Graphic Arts convention, Baltimore Marriott. Contact: Karen Lawrence, Rochester Institute of Technology, 1 Lomb Memorial Drive, Rochester, N.Y. 14623. Expected attendance: 200.