CTA expects to start using 21.2-million gallons of ultra low sulfur diesel (ULSD) every year starting this March under a new contract signed with Warrenville, IL-based diesel fuel supplier BP. That's because CTA plans to integrate 226 new buses this year into its fleet designed to operate on ULSD.
BP's refinery in Whiting, IN, produces ULSD under the brand name Emission Control Diesel. The fuel meets federal clean air regulations of 15 ppm set to take effect in 2006, compared to the current standard of 500 ppm of sulfur.