The Readiness and Environmental Protection Integration (REPI) Program supports cost-sharing partnerships authorized by Congress (10 U.S.C. § 2684a), between the military Services, private conservation groups, and state and local governments to protect military test and training capabilities and conserve land. These win-win partnerships acquire easements or other interests in land from willing sellers to preserve compatible land uses and sustain wildlife habitat near installations and ranges where the military operates, tests, and trains. The Office of the Secretary of Defense (OSD) created REPI to organize and administer congressional funding for authorized projects. OSD provides Department of Defense (DoD) policies and standards, stakeholder engagement and regional partnerships, and integration of various tools to enhance mission-supportive partnerships. These collective REPI efforts are part of the Department’s larger Sustainable Ranges Initiative. The Sustainable Ranges Initiative ensures that the military continues to effectively test and train now and into the future. REPI is DoD’s core effort aimed at using the authority provided by Congress to protect military readiness by preventing incompatible development and preserving habitat through buffer projects, supportive education, engagement, and regional planning.