Boeing Business Jets is a joint venture formed by Boeing and General Electric in July 1996 to develop and market a corporate version of the popular 737 airliner, initially focusing on the 737-700 based BBJ (or 737-700 BBJ). The first BBJ rolled out from Boeing's Renton plant on August 11 1998 and flew for the first time on September 4 that year. On October 30 the US FAA awarded certification to the developed 737-700 airframe on which the BBJ is based. The first completed BBJ was delivered on September 4 1999. The BBJ combines the Next Generation 737-700's airframe combined with the strengthened wing, fuselage centre section and landing gear of the larger and heavier 737-800, with three to 10 belly auxiliary fuel tanks. It features the Next Generation 737 advanced two crew six LCD screen EFIS avionics flightdeck, equipped with embedded dual GPS, TCAS, enhanced GPWS and Flight Dynamics head-up guidance system. Following their certification in September 2000, winglets became a standard option.