Several appointments were recently announced by the Riggs National Bank of Washington.

William H. Ryland was elected senior vice president. Ryland worked for Union Trust Co. of Maryland and American Security Bank before joining Riggs in October 1978.

Colin J. L. Torrible was promoted to vice president in charge of the revolving credit department. He has been with the bank since 1957.

Fatricia Klinck, Von C. Williams, Michael S. Donovan and John C. Kline were elected vice presidents. Klinck is a corporate commercial loan officer. She came to Riggs from the National Bank of Washington. Williams joined the bank in March as vice president and area head in Asia and the Pacific. Donovan is vice president in the multinational banking group. Kline, vice president in charge of operations in the real estate department, has been with Riggs since 1967.

Elected to assistant vice president were Carlos C. Escudero and C. Michael Hincewitz, both of the corporate division, Ghada Horchani of multinational, Walter A. Howell of operations, and Gail Hughes of training and development.

James E. Lebher has been named rust investment officer and Carol Krieger, data processing officer.

Julianne E. Verrier of the marketing department was named public relations officer. She has been with the bank since 1970 and served in the office of the president until 1977.

Vershan N. Scales has been elected to the board of the United National Bank of Washington, the largest minority-owned bank in Washington.

Scales is a founder and president of MTI Construction Co., a divsion of Minority Truckers Inc.

Edward J. Loeffler has been promoted to executive technical director of the National Machine Tool Builders' Association. The association represents more than 360 U.S. manufacturers of power driven machinery.

Arthur J. R. Smith has been elected president of the National Planning Association, a private, nonprofit research and policy formulation orgainzation.

J. Gilbert Nettleson Jr. has been elected corporate vice president of marketing for Fairchild Industries.

Before joining Fairchild, Nettleson was vice president for the aerospace and marine systems of the Singer Co. Before that he worked for International Telephone and Telegraph and the Northrop Corp.

Norma Maine Loser, dean of the school of government and business administration at George Washington University, has been elected to the board of directors of Peoples Life insurance Co.

Loeser, a former lieutenent colonel in the Air Force, has taught business and management courses at GW for more thatn 10 years. Among the various management and military positions she has held are: managing director of tht Civil Aeronauties Board; deputy director of Women in the Air Force and management engineering officer of the Air Force Systems Command. From 1974 to 1976, Loeser served as a presidential appointee on the Defense Manpower Commission

George W. Knepley, customer services manager of Washington Gas Light Co., has been elected president of the Credit Management Association of Greater Washington.

The credit group, which numbers more than 300 area businesses, also named Roy P. Wolfe of Mirman Brothers Inc. as first vice president and Jean Pierce of The Washington Post Co. as second vice president.

Stanley Prill has been elected president and chief operaing officer of the Blake Construction Co. Pril succeeds Marton Nemder, who has been elected chairman of the board of the company.

Prill joinied Blake in 1964 as an engineer. He is a director and past president of the Construction Contractors Council, a past director of the Master Builders and chairman of the multicraft negotiations steering committee of the Washington Construction Employers Association.

Allison Bryant has been named executive vice president of the District of Columbia Chamber of Commerce Inc.

Bryant is an executive "on loan" to the chamber from the U.S. Department of Housing and Urban Development where he has been serving as chief of the technical and program training branch.

Gene Alim has been promoted from general sales manager of WINX radio to station manager.

Beth I. Howard and F. William Burke have been elected vice presidents and trust officers of the trust and investment division of American Security Bank.

Howard joined the bank in 1967 and was formerly assistant vice president in the trust and investment division. Burke came to American Security in 1975 as assistant vice president in the same division.

The board of McLachlen National Bank has elected David G. Poole to senior vice president-cashier, Frederick S. Lott Jr. to vice president and Alan M. Hooker to assistant vice president.

Poople has been with McLachlen since 1957. He is member of the Auditors Control and Operations Section of the D. C. Bankers Association and the Metropolitan Washington Board of Trade. Lott is the money manager for McLachlen's operating funds. He joined the bank in 1958. Hooker joined McLachlen after 10 years with Cleveland banks, most recently as assistant vice president with the Society Corp.

Genasys Corp., a Rockville-based computer software firm, recently announced several executive appointments. They are: William E. Griffis, senior vice president in charge of corporate development; John N. Larmer II, corporate vice president; Ronald S. Husey, vice president; Myron B. Jonsberg Jr., vice president; C. Daniel Looper, vice president; and David A. Mucka, vice president.

Paul Gilbert, former director of Prince Georges County's Neighborhood Business Revitalization Department, has been named acting director of the county's office of Program Planning and Economic Development. CAPTION: Picture 1, WILLIAM H. RYLAND . . . senior vice president; Picture 2, ARTHUR J. R. SMITH . . . association president; Picture 3, NORMA MAINE LOESER . . . on Peoples Life board; Picture 4, STANLEY PRILL . . . construction president