Mary J. Layton has been appointed assistant postmaster general for public and employe communications for the U.S. Postal Service. Layton comes to Washington from New York City, where she worked in the public affairs division of the Port Authority of New York and New Jersey.

Rockville city manager Larry N. Blick has been appointed to an advisory council of Public Technology Inc., a national organization of cities and counties involved in efforts to improve public services by the use of new technology.

Leonard E. Albert has been named director of administrative services for the Maryland Department of Economic and Community Development. He was formerly director of administration for the state Department of Health and Mental Hygiene.

In a related development, R. Ray Adcock has been named director of the Maryland Industrial Training Program, which is also operated by the Department of Economic and Community Development. Adcock was previously director of industrial training for the state of Mississippi.

Prince George's County Council Member Sarah Ada Koonce has been named to the Maryland Commission on Correctional Standards.

Leonard A. Blackshear, president of the Baltimore consulting firm of Associated Enterprise Development Inc., has been appointed to the national advisory council of the Small Business Administration.