Is MSHA About to Defy Science, Logic & Law with a New Coal Dust Rule?
By Erik Dullea and Henry Chajet MSHA anticipates publishing a final, new coal dust regulation in June 2013. A new exposure imit, proposed in October 2010, contemplates a 50% reduction from the current exposure limit (2 mg/m3) to 1 mg/m3. The accompanying … Continued