Metropolitan Transit System

Metropolitan Transit System (MTS) is a U.S. local government transit authority based in San Diego, California, operating comprehensive public transportation services across 570 square miles of San Diego County, serving approximately 3 million people. Registered in SAM.gov until July 2026, MTS provides critical transportation infrastructure through bus and light rail services, maintaining a fleet of over 700 buses and multiple light rail lines. The organization is committed to providing safe, reliable, and accessible transportation, with a strategic focus on serving urban and rural areas, including connections to major institutions like UC San Diego and nearby naval facilities.

MTS has received numerous federal grants primarily from the Federal Transit Administration (FTA) under various programs such as Federal Transit Formula Grants, State of Good Repair Grants, and Buses and Bus Facilities Programs. These grants have supported critical transit infrastructure investments, including fleet maintenance, vehicle replacements, and infrastructure upgrades. Specific grant-funded projects include purchasing compressed natural gas buses, maintaining light rail vehicles across four transit lines, upgrading transit station equipment with variable messaging signs and public address systems, and developing zero-emission bus infrastructure. The organization has also received grants for ADA paratransit service technology enhancements and a FEMA Rail and Transit Security Grant for infrastructure protection. Additionally, MTS has received sub-awards from entities like the State of California Department of Transportation and San Diego Association of Governments, which have supported operating assistance and vehicle fleet replacements. The grants consistently aim to improve transportation reliability, accessibility, and service quality for San Diego County residents.