? An amendment to require Energy Department contractors involved in the transportation of high-level nuclear waste to maintain the maximum available amount of private insurance coverage. ? The amendment also would permit the Justice Department to sue a waste transportation contractor in the event of an accident caused by bad faith, willful misconduct, or gross negligence of the contractor's corporate officers, managers, or supervisors, with the maximum amount recoverable to be three times the contractor's profit under the contract, or 10% of the contractor's net worth, whichever is less.