Justice Clarence Thomas argued that OSHA's authority was unconstitutional. He dissented from the court's decision to reject a challenge to the agency.

OSHA has been used to protect workers from falls, fires, electric shock, being hit by foreign objects, asphyxiation, chemical burns and more.

Over opposition from two conservative justices, the Supreme Court on Tuesday turned away a challenge that could’ve gutted the Occupational Safety and Health Administration (OSHA). An Ohio-based construction contractor backed by Republican-led states and anti-regulatory interests contended Congress unconstitutionally delegated its legislative powers to the executive branch when it gave such broad authority to the agency,

Thomas went against his colleagues after they declined to hear an appeal challenging the authority of the Occupational Safety and Health Administration.

The U.S. Supreme Court declined on Tuesday to hear a challenge by an Ohio company to the power of the federal workplace safety regulator as the justices avoided another legal effort to pare back the authority of federal agencies.