Operational Definitions for the Hierarchy of Controls

摘要

1) Elimination. Removal of the hazard and thus the risk through the design and redesign processes. 2) Substitution. Replacing the hazard with an alternative with less risk. Substitute a less-hazardous material or reduce the system energy (e.g., lower the force, amperage, pressure, temperature) (OHSAS 18002). The consensus is that this control is permanent to the work system, tools, etc., and to be differentiated from administrative controls, which, ideally, are temporary in nature or focus on procedures, human elements, etc.