This bill, titled the "National Coordination on Resilience for Security Act of 2026," aims to enhance the United States' ability to withstand and recover from natural hazards by establishing a coordinated national resilience framework. It amends the National Security Act of 1947 to create a new section focused on national resilience coordination. A key provision is the designation of a Chief Resilience Officer within the National Security Council, responsible for coordinating interagency processes related to U.S. resilience. This officer's duties include building resilience to natural hazards based on the best available science, bolstering national security through increased resilience at military installations, analyzing federal investments in resilience, and improving the efficiency of these expenditures. The Chief Resilience Officer will establish interagency working groups to facilitate coordination and develop the National Resilience Strategy. Additionally, a Partners Council on Resilience will be created, chaired by the Chief Resilience Officer, to provide recommendations on how the Federal Government can better support non-Federal partners, including state, local, tribal governments, NGOs, and the private sector, particularly in rural and underresourced communities. The bill mandates the development of a comprehensive National Resilience Strategy , to be submitted to the President and Congress within two years and updated every three years. This strategy will outline how the Federal Government, in partnership with non-Federal entities, will address vulnerabilities to natural hazards, emphasizing proactive adaptation, predisaster mitigation, and prioritizing vulnerable communities and urgent national resilience challenges. The strategy must include information on supporting non-Federal partners, such as clarifying funding access and providing technical assistance, and developing metrics to measure resilience. It also requires an analysis of federal funding and cost-benefit methodologies related to resilience. An implementation plan detailing agency roles and interagency agreements will accompany the strategy. To ensure accountability, the Comptroller General will assess the strategy's implementation and effectiveness every two years. The Chief Resilience Officer must also establish an Adaptation and Resilience Clearinghouse to improve access to federal data, information, and technical assistance for non-Federal partners. The requirements of this section will terminate after the third assessment report or 10 years, whichever comes first.