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Washington – OSHA recently published four letters of interpretation regarding its revised Hazard Communication Standard.

Falls Church, VA – Oil and gas workers are exposed to respirable crystalline silica during directional drilling and hydraulic fracturing operations, a new NIOSH study concludes.

Washington – The Chemical Safety Board has scheduled a meeting to consider whether OSHA's responses to some of the board's recommendations have been "unacceptable," and to launch its Most Wanted Chemical Safety Improvements Program.