Republic Airways Holdings offers scheduled passenger service through two operating air carrier subsidiaries: Shuttle America and Republic Airline. It provides regional flights through fixed-fee agreements with global carriers in the United States, Canada, and Caribbean. The global carriers allow Republic Airways to use their colors, logos, and market as if a part of the brand. The fixed-fee agreements have historically limited Republic's exposure to variations in fuel prices, fare competition, and passenger volumes. The company maintains aircraft on an "as-needed" basis, and utilizes certified maintenance vendors and its own personnel and facilities.