OSHA Fact Sheet – OSHA’s Respirable Crystalline Silica Standard for Construction, The Michigan Landscape, May/June 2018 MIOSHA Fact Sheet – Crystalline Silica Exposure in Construction and General Industry, The Michigan Landscape, May/June 2018 Written Silica Exposure Conrol Plan (Sample), The Michigan Landscape, May/June 2018 Respirable Crystalline Silica – Presentation Silica Website, MI Dept of Labor and Economic Opportunity