Over the years, the Big Blue Bus has always maintained a fleet of buses that represents the latest in bus technology. As newer buses with state-of-the-art technology and cleaner burning fuel have been produced, the Big Blue Bus has purchased them. Our fleet of 210 buses represents a range of bus innovation. 43 percent of the fleet is fueled by Liquefied Natural Gas (LNG) which is 77% cleaner burning than diesel-fueled buses.