Several industry groups are suing OSHA over its inclusion of combustible dust as a hazard category in the agency's new hazard communication (hazcom) standard, questioning whether the agency's move violates administrative procedure rules. The legal challenge -- reviving issues that cropped up during the final stretch of the rulemaking -- also challenges OSHA's inclusion of a category identified as “Hazards Not Otherwise Classified” (HNOC). The newly filed suit poses potential hurdles for the only major rule OSHA has issued this year, and a source tells Inside OSHA Online the parties are in sett
December 29, 2025
