Conclusion
Sometimes a hazard cannot be controlled using a single type of control method. If a hazard cannot be eliminated, a combination of controls may be required.
For example:
Driving in the winter for work. Controls may include not driving during extreme winter weather (elimination), determining if there are any other options for driving, such as public transit (substation), use of winter tires (engineering), and driver training (administrative).
It is important to determine the effectiveness of the control methods implemented and adjust as required.
Controls must not create new hazards. For example, if wearing PPE contributes to other hazards (e.g., heat stress), then it is important to review if other control methods are possible or if additional precautions are needed.
Monitor both the hazard and the control method to make sure that the control is working effectively and that exposure to the hazard is reduced or eliminated.