“In October 1997, two reactor operators at the Advanced Test Reactor Critical Facility in Idaho falsified records to indicate that the required testing of reactor safety systems had been performed, when in fact it had not. Additionally, the reactor supervisor, upon discovering that such testing had not been performed, failed to notify management representatives of the problem. The safety systems involved are relied on to automatically shutdown the reactor in an emergency. This enforcement action includes a $55,000 fine. The contractor has taken disciplinary actions against the employees involved and has also undertaken formal measures to improve the conduct of operations at the site’s nuclear facilities.”