California Gov. Gavin Newsom signed a measure Monday that will ban public rail agencies from selling their oldest diesel ...

California withdrew Tuesday its request that the federal government allow the state to enforce rules limiting emissions from diesel-powered trains and big rigs in anticipation of the Trump ...

For Caltrain, its recent deal to sell 19 vintage diesel locomotives and 90 well-used passenger cars to an overseas city that will use them for a badly needed commuter train line is nothing but good ...

After Caltrain completed electrifying tracks between San Francisco and San Jose, the agency found itself stuck with now-obsolete rail cars and diesel engines. Working with the U.S. State Department, ...