On June 2, 2026, California Governor Gavin Newsom signed a groundbreaking new law that will require the decommissioning of all aging nuclear power plants in the state. The legislation, known as the Nuclear Energy Decommissioning and Cleanup Act, aims to address growing concerns about the safety and environmental impact of operating outdated nuclear facilities.The new law will mandate the closure and decommissioning of all nuclear power plants in California that are more than 40 years old. This includes the Diablo Canyon Power Plant in San Luis Obispo County, which has been in operation since the 1980s. The law also establishes a fund to cover the costs of decommissioning and cleaning up these facilities, ensuring that taxpayers are not left footing the bill.Governor Newsom hailed the new law as a major step forward in California's commitment to renewable energy and environmental stewardship. "As we move towards a cleaner and more sustainable energy future, it is crucial that we address the risks and challenges posed by aging nuclear power plants," Newsom said in a statement. "This legislation will ensure that these facilities are safely decommissioned and their sites remediated to protect public health and the environment."The decision to decommission the Diablo Canyon Power Plant was met with mixed reactions from stakeholders. Environmentalists and nuclear safety advocates praised the move as a necessary step to protect the state from potential disasters, citing concerns about the plant's proximity to fault lines and the Pacific Ocean. However, some industry groups and local officials expressed concerns about the economic impact of shutting down a major source of energy production in the state.Under the new law, the Diablo Canyon Power Plant will begin a phased decommissioning process, with the first reactor scheduled to be shut down within the next two years. The plant's operator, Pacific Gas and Electric Company, will be responsible for managing the decommissioning process and ensuring that all nuclear material is safely removed and stored.The Nuclear Energy Decommissioning and Cleanup Act represents a significant shift in California's energy policy, signaling a move away from nuclear power towards renewable sources like wind, solar, and geothermal. With this new law in place, the state is poised to lead the way in sustainable energy production and environmental protection for years to come.