WASHINGTON -- The Occupational Safety and Health Administration is publishing for public comment a direct final rule requiring employers to notify workers of exposures to hexavalent chromium. OSHA is responding to the Third Circuit Court's decision that the agency failed to explain why it departed from the proposed rule that would require notifying workers of all hexavalent chromium exposures. Workers exposed to this toxic chemical are at greater risk for lung cancer and damage to the nose, throat and respiratory tract.