Division of Powers and Responsibilities Between the Chairperson of the Chemical Safety and Hazard Investigation Board and the Board as a Whole

Under the Clean Air Act Amendments of 1990 and general principles governing the operation of boards, the day-to-day administration of Chemical Safety and Hazard Investigation Board matters and execution of Board policies are the responsibilities of the chairperson, subject to Board oversight, while substantive policymaking and regulatory authority is vested in the Board as a whole.

In disputes over the allocation of authority in specific instances, the Board’s decision controls, as long as it is not arbitrary or unreasonable.