As of September 23, 2017 OSHA requires employees that may be exposed to Respirable Crystalline Silica to have awareness training. Silica Awareness is appropriate for individuals who may be exposed to Respirable Crystalline Silica in the course of construction activities; which may include cutting, sawing, drilling, and crushing of concrete, brick, ceramic tiles, rock, and stone products. Topics covered per OSHA 1926.1153, include the fundamentals of Silica and Respirable Crystalline Silica, b