1. Hazard Control  Engineering controls  Administrative controls  Personal and Procedural controls

2. Engineering Controls  Substitution  Hazard isolation  Guarding  Ventilation  Containment equipment  Facility design

3. Administrative Controls  Hazard or process substitution  Work scheduling  Purchasing  Training  Inspections  Occupational health programs

4. Administrative Controls  Occupational hygiene programs  Accident reporting, analysis, and follow-up  Emergency response  Policies

5. Personal & Procedural Controls  Lock-out/Tag-out  Pre-work checklists  Protective clothing  Personal protective equipment (face protection, eye protection, respirators, etc.)

6. Total Containment Clothing Mechanical devices Lab Design Safe Work Practices Total Containment

7. Negating Controls Wrong choice of gloves Inappropriate ventilation choice Inappropriate chemical storage Poor lab design Inappropriate fire extinguishers Obstructing emergency response equipment Ineffective disinfectants Wrong respirators/no fit testing Inadequate functioning of autoclave