OSHA has issued a National Emphasis Program (NEP) for respirable crystalline silica. The goal of this NEP is to significantly reduce or eliminate worker exposures to respirable crystalline silica in general industry, maritime, and construction. This goal will be accomplished by a combination of inspection targeting, outreach to employers, and compliance assistance. The NEP targets specific industries expected to have the highest exposures to respirable crystalline silica and requires a 90-day outreach period before initiating any programmed inspections.
Read more here: https://www.osha.gov/sites/default/files/enforcement/directives/CPL_03-00-023.pdf