After assessing the risks, you need to take action to eliminate or reduce them. This process is called hazard control, and involves implementing measures to prevent or minimize exposure to the hazards. The widely used hierarchy of controls framework ranks the effectiveness of different types of controls, from most to least effective. This includes elimination, substitution, engineering, administrative, and personal protective equipment (PPE). You should always strive for the highest level of control possible and combine multiple controls if necessary. Elimination involves removing the hazard completely from the workplace, while substitution replaces the hazard with a less harmful alternative. Engineering designs or modifies the equipment, processes, or environment to isolate or reduce the hazard. Administrative establishes policies, procedures, or training to limit exposure to the hazard. PPE provides workers with appropriate clothing, gear, or devices to protect them from the hazard.