In order to qualify for the GS-13 , you must meet the following: You must demonstrate in your resume at least one year (52 weeks) of qualifying specialized experience equivalent to the GS-12 grade level in the Federal government, obtained in either the private or public sector, to include: Resolving official travel complications such as last-minute itinerary changes, multi-leg emergency arrangements, requiring immediate interpretation of federal travel regulations where established guidance does not directly apply; AND, 2. Processing travel authorizations and vouchers using government-wide travel systems, ensuring use of contracted fares, per diem rates, and approved lodging; AND; 3. Preparing and reviewing travel authorizations, amendments, and expense vouchers for the most complex travel arrangements. The Department of Health & Human Services (HHS), Centers for Medicare & Medicaid Services (CMS) works in partnership with the entire health care community to improve quality and efficiency in an evolving health care system and provides leadership in the broader health care marketplace.