WASHINGTON, June 27 (TNSFR) -- The U.S. Department of Labor Mine Safety and Health Administration is accepting public comments on ICG Beckley LLC's, West Virginia, petition to modify atmospheric monitoring requirements at a West Virginia coal mine. The notice, published in the Federal Register, summarizes a petition requesting modification of mandatory safety standard 30 CFR 75.351(h), which requires atmospheric monitoring system (AMS) sensors to be located within 50 feet downwind of electrical  more