"Over these ten years, we have continuously worked to improve the E-Jet family by perfecting its performance and reducing operating costs. This ensures that our customers have the best product in the up to 130-seat jet category and some of the best operational support services in the industry." Embraer is the only manufacturer to have developed a family of four modern airplanes specifically for the 70 to 130-seat capacity segment. Since the formal launch of the program in 1999, Embraer E-Jets have redefined the traditional concept of regional aircraft by operating in other business applications. Today, E-Jets are flying with mainline carriers, low-cost and regional airlines, and with scheduled tour companies. In September 2013, Embraer delivered its 1,000 th E-Jet. The E175 was delivered to Republic Airlines, a subsidiary of Republic Airways Holdings Inc. of the USA. That same year, the worldwide E-Jets fleet surpassed 10 million flight hours and carried some 540 million passengers.