Business groups have decided their day in court is over after D.C. Circuit appellate judges threw out the groups' challenge of OSHA's inclusion of combustible grain dust in its 2012 update to the hazard communication rule, accepting that affected employers will have to integrate the requirement in their operations despite the trade groups' rigorous assertion that OSHA failed to follow regulatory procedure in defining combustible dust, a knowledgeable legal source tells Inside OSHA Online.
December 27, 2025