https://www.osha.gov/as/opa/quicktakes/qt032416.html

March 24, 2016 · Volume 15, Issue 8
OSHA Quick Takes -  SPECIAL EDITION

OSHA today announced a final rule to improve protections for workers exposed to respirable silica dust. The rule will curb lung cancer, silicosis, chronic obstructive pulmonary disease and kidney disease in America's workers by limiting their exposure to respirable crystalline silica.  (to read more, click the link above)