Knowledge of advanced HR principles; and pay, premium pay, and leave administration principles, concepts, and practices, including multiple pay systems and authorities under Title 5 and other civilian personnel legal authorities, sufficient to serve as the AFPC advisor providing expert technical advice and assistance to operating HR offices and managers, and to represent the Air Force in unemployment hearings for all 50 states. Examples of specialized experience includes: knowledge and practical understanding of federal personnel management functions, theories, techniques, and the relations of the various personnel disciplines; as well as knowledge of the Directorate objectives, mission, and operating programs and the implications of such on-Air Force civilian personnel management programs.