This industry comprises government establishments serving as councils and boards of commissioners or supervisors and such bodies where the chief executive (e.g., county executive or city mayor) is a member of the legislative body (e.g., county or city council) itself. Cross-References. Establishments primarily engaged in-- ? Serving as offices of chief executives--are classified in Industry 921110, Executive Offices; and ? Serving as legislative bodies--are classified in Industry 921120, Legislative Bodies.