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LLNL Emergency Management Plan (EPlan) <br />Rev 27 <br />January 2022 <br /> <br /> 12 <br />1.3.6 Operational Emergency Termination and Recovery <br />The emergency will be terminated by the ED when the emergency condition is stabilized and <br />with the input of the IC and, if activated, the Emergency Management Team and offsite decision- <br />makers. This concurrence assures there is no longer a threat to employee safety, the public, the <br />environment, or national security. See Section 11 of this Emergency Plan for emergency <br />termination and recovery. <br />Once categorized, an Operational Emergency must not be downgraded to a lower significance <br />category unless the original categorization was incorrect. An event determined to be an <br />Operational Emergency will remain so until the emergency response is terminated. In general, <br />the classification (i.e., Alert, Site Area Emergency, or General Emergency) of a hazardous <br />material Operational Emergency should not be downgraded until termination of the event. <br />However, classification must be reviewed periodically by the EOC to ensure the classification is <br />commensurate with response activities. <br />1.3.7 Emergencies Caused by Cyber Attacks <br />With respect to LLNL Information Technology (IT) system networks, both classified and <br />unclassified, there are a variety of human-caused intentional activities that may pose a threat <br />event to these networks, such as a cyber attack against critical infrastructure at LLNL. The LLNL <br />Cyber Security Program Plan establishes the policies and practices utilized at LLNL to address <br />cyber incidents and intentional attacks on LLNL IT networks. Response to cyber attacks is <br />coordinated in accordance with the LLNL Cyber Security Program Plan and managed by the <br />Cyber Security Program within the LLNL Office of the Chief Information Officer. Specific <br />responses are further covered by the Network System Protection and Monitoring team in <br />accordance with their emergency response handling procedures. If the consequences of a cyber <br />attack impact critical LLNL infrastructure or activities and cause events that are deemed a <br />significant emergency or an Operational Emergency (see Section 5.1), the emergency response <br />aspects of the cyber attack will be responded to in accordance with this Emergency Plan and <br />applicable procedures and NNSA’s Information Conditions (INFOCON) guidance which <br />identifies attack levels and LLNL actions of computer network attacks and computer network <br />exploitation conditions. <br />1.4 Site Description <br />1.4.1 Overview Including Function and Mission <br />LLNL is operated and managed by LLNS, LLC. LLNS is a limited liability company managed <br />by the University of California; Bechtel National, Inc.; BWX Technologies, Inc.; and Amentum.