Hierarchy of controls applied to dangerous substances

Introduction

Measures to control workers’ exposure to hazardous substances are often integrated into existing work processes and practices, in which personal protective equipment (PPE) also frequently plays an important role. These measures can reduce exposure, but they may not always provide the most effective or sustainable level of protection, particularly when opportunities to control hazards earlier in the process have not been fully considered. The hierarchy of controls supports the identification of a range of control options for addressing the risks of exposure to hazardous substances in the workplace in a more fundamental manner. …