After hazards are identified, how can they be prevented and controlled?

Continually review the work environment and work practices to control or prevent workplace hazards.

Some ways to prevent and control hazards are:

• Regularly and thoroughly maintain equipment
• Ensure that hazard correction procedures are in place
• Ensure that everyone knows how to use and maintain personal protective equipment
• Make sure that everyone understands and follows safe work procedures
• Ensure that, when needed, there is a medical program tailored to your facility to help prevent workplace hazards and exposures

After detection, all current and potential hazards must be prevented, corrected or controlled. Systems used to prevent and control hazards include:

• Engineering Controls
• Safe Work Practices
• Administrative Controls
• Personal Protective Equipment (PPE)
• Systems to Track Hazard Correction
• Preventive Maintenance Systems
• Emergency Preparation
• Medical Programs

((((cf: https://www.osha.gov/SLTC/etools/safetyhealth/comp3.html )))  
or Google: 3 TYPES OF SAFETY PROTECTION ))))