The Bethesda-Chevy Chase Chamber of Commerce has installed as its president Stanley D. Abrams, a partner in the law firm of Levitan, Ezrin, West & Kerxton. Installed as vice presidents were Stephen Kaufman, a partner in the law firm of Linowes & Blocher; Edward Asher, vice president of the Chevy Chase Land Co.; Barbara Zacks of the personnel placement firm Career Exchange; Kevin O'Grady, leasing manager for Eisinger, Kilbane & Associates, and Joseph Healy, a partner in the accounting firm of Jones & Healy.

Joseph L. Koach, president of Koach and Associates, was recently elected chairman of the board of the Greater Washington Society of Association Executives.

Edwin E. Edel, vice president of corporate communications for the CSX Corp., has been elected president of the Railroad Public Relations Association. He succeeds Jimmy Banks, director of public relations for the Texas Railroad Association.

The American Occupational Therapy Association recently appointed Francis A. Acquaviva, William J. Graves and Madelaine Gray associate executive directors.

Edward M. Rider has been appointed director of the government traffic department of the American Trucking Association. He succeeds Walter P. Saylor, who resigned. Rider previously was director of the association's agricultural relations department.

Suzanne L. Paciulli has been elected first vice president of the Fairfax County Chamber of Commerce.

Frederic Case, president of Case Design and Remodeling Co., has been elected a national vice president of the National Remodelers Association and the National Home Improvement Council.