Additionally, MTS intends to use 17 of the sixty-foot, heavy duty transit buses currently in production for its new South Bay Rapid Transit (BRT) service expected to open later this year.
BRT is a $128m (£92m) project that includes 12 stations along a 26-mile route from the U.S. – Mexico border to Downtown San Diego via eastern Chula Vista, connecting to employment and activity centres in the area and South County.
The contract includes 30 firm orders with options to purchase an additional 20 CNG buses.
Wayne Joseph, president, New Flyer of America, said: "As San Diego and its surrounding regions continue to invest in the development of a compact urban core, the need for efficient transportation will increase. MTS has recognized this and is proactively leading the evolution to sustainable public transit. We commend MTS on its industry leadership in low-emission transit, and are proud to again provide New Flyer buses to support a growing San Diego."