This industry comprises government establishments primarily engaged in one or more of the following: (1) the administration, regulation, and enforcement of air and water resource programs; (2) the administration and regulation of solid waste management programs; (3) the administration and regulation of water and air pollution control and prevention programs; (4) the administration and regulation of flood control programs; (5) the administration and regulation of drainage development and water resource consumption programs; (6) the administration and regulation of toxic waste removal and cleanup programs; and (7) coordination of these activities at intergovernmental levels. Illustrative Examples: Environmental protection program administration, public administration Waste management program (except sanitation districts) administration, public administration Pollution control program administration, public administration Water control and quality program administration, public administration Cross-References. Government establishments primarily engaged in--