1. Environment and humans 2. Food protection 3. Food technology 4. Insect control 5. Rodent control 6. Pesticides 7. Housing 8. Institutional environment 9. Recreational environment 10. Occupational environment 11. Air quality management 12. Solid waste management 13. Private and public water supplies 14. Swimming areas 15. Plumbing 16. Private and public sewage disposal and soils 17. Water pollution and water quality controls 18. Environmental health emergencies nuisance complaints and special problem