The "Restore and Modernize Our National Laboratories Act of 2025" mandates the Secretary of Energy to fund projects aimed at addressing deferred maintenance , critical infrastructure needs, and modernization efforts across National Laboratories. These projects encompass essential upgrades and construction for research facilities, administrative buildings, utilities, and other critical infrastructure, alongside initiatives to modernize core infrastructure for emerging science missions and maintain safe operations. To support these vital improvements, the bill authorizes the appropriation of $5,000,000,000 annually for fiscal years 2026 through 2030, with a significant portion dedicated to the Office of Science. Furthermore, it amends the Energy Policy Act of 2005 to broaden the scope of the Department of Energy's facilities and infrastructure strategy, ensuring it supports current and future science and energy missions across multiple departmental offices. The Secretary is required to submit a comprehensive report to Congress detailing this updated strategy, including a 10-year plan for facility reconfiguration, estimated funding, and project prioritization criteria.