The Association of Builders and Contractors (ABC) has asked the U.S. Court of Appeals for the Fifth Circuit to review OSHA's two-week-old silica rule. ABC says that OSHA "[displays] a fundamental misunderstanding of the real world of construction" in its new rule. One of the group's chief concerns is that OSHA underestimated the cost to implement the rule. While OSHA estimates it will cost $500 million, the Construction Industry Safety Coalition estimates it will cost $5 billion.

The National Association of Home Builders, the Associated General Contractors of America, and several regional groups have also signed the petition.

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