The Nuclear Regulatory Commission, or NRC, was a United States federal agency with oversight over nuclear technology and development. In concert with the NRC, defense contractor McLennan-Forster developed the Dobson Override, a device capable of remotely interfacing with U.S. nuclear power plants and powering them down in the event of a meltdown. Terrorist Habib Marwan, an employee at McLennan-Forster, stole the override and used it to cause meltdowns across the country, succeeding at the plant on San Gabriel Island, California. The NRC worked with CTU Los Angeles to counter Marwan's efforts, preventing meltdowns at the other targeted facilities. ("Day 4: 12:00pm-1:00pm", "1:00pm-2:00pm", "3:00pm-4:00pm")