Omnitrans is a public transportation agency in San Bernardino County, California, United States. The largest transit operator within San Bernardino County, it serves the San Bernardino Valley. The agency was established in 1976 through a joint powers agreement and today includes 15 cities and portions of the unincorporated areas of San Bernardino County. In addition to the southwestern corner of San Bernardino County, Omnitrans provides service to parts of Riverside and Los Angeles Counties. Omnitrans currently carries about 11 million passengers per year. Omnitrans currently operates fixed route bus service, bus rapid transit and a paratransit service for the disabled, Access. Omnitrans operates throughout the urbanized area of southwestern San Bernardino County: south of the San Bernardino Mountains, from Upland, Montclair, and Chino in the west to Redlands, California and Yucaipa in the east. The Omnitrans service area covers approximately .