A coalition of construction groups that includes the Mechanical Contractors Association of America, the National Roofing Contractors Association and Associated Builders and Contractors is urging OSHA to drop a proposed rule on silica.

 “After an exhaustive analysis that involved hundreds of construction safety professionals, builders, construction managers and specialty trade contractors representing virtually every facet on the industry, it is our conclusion that the administration’s proposed new silica rule is significantly flawed and will do little to improve workplace health or safety,” the Construction Industry Safety Coalition told the Occupational Safety and Health Administration. “Specifically, the proposed rule sets a silica exposure standard that cannot be accurately measured or protected against with existing equipment and includes a series of data errors that undermine many of the rule’s basic assumptions.”