Civil Service and National Security Personnel Improvement Act

Civil Service and National Security Personnel Improvement Act - National Security Personnel System Act - Authorizes the Secretary of Defense to establish and periodically adjust a human resources management system for some or all organizational or functional units of the Department of Defense (DOD). Authorizes the Secretary to: (1) offer to DOD employees early retirement, separation incentive pay, or both; (2) carry out a program to attract highly qualified experts in needed occupations; (3) appoint older Americans to certain positions in the excepted service; and (4) provide special pay and benefits for certain DOD employees outside the United States.Authorizes Cabinet secretaries, secretaries of military departments, and heads of executive agencies to be paid on a biweekly basis.Authorizes the Securities and Exchange Commission to appoint accountants, economists, and securities compliance examiners in accordance with provisions and regulations governing appointments in the excepted service.Establishes separate workforce authorities and personnel provisions for the National Aeronautics and Space Administration (NASA). Authorizes NASA to: (1) pay recruitment, redesignation, and relocation bonuses; (2) make term appointments and take related personnel actions; (3) fix basic rates of pay; and (4) extend intergovernmental personnel act assignments. Requires: (1) the NASA Administrator to submit a written workforce plan to the Office of Personnel Management for approval; and (2) the plan to be submitted to all NASA employees in advance of its implementation. Authorizes the Administrator to: (1) conduct employee exchanges with private entities; (2) carry out a scholarships for employment exchange program; (3) appoint distinguished scholars as employees; (4) pay travel, transportation, and relocation expenses of new appointees; (5) deem periods of certain non-Federal service as Federal service for annual leave qualification purposes; and (6) provide superior qualifications pay to certain employees. Limits the number of NASA limited emergency appointees to ten percent of total Senior Executive Service positions.Establishes the Human Capital Performance Fund for providing funds to executive agencies for human capital performance payments to employees based on exceptional performance contributing to the achievement of an agency's mission.