<p>The National Nuclear Security Administration (NNSA)leads a nuclear security enterprise that includes three national laboratories, several production facilities, and an experimental test site. NNSA's mission is protect the American people by maintaining a safe, secure, and effective nuclear weapons stockpile; by reducing global nuclear threats; and by providing the U.S. Navy with safe, militarily effective naval nuclear propulsion plants.</p> <p>The FY2016 National Defense Authorization Act called for the National Academies, in partnership with the National Academy of Public Administration, to track and assess progress over 2016-2020 to reform governance and management of the enterprise. <i>Governance and Management of the Nuclear Security Enterprise</i> assesses the effectiveness of reform efforts and makes recommendations for further action.</p>