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

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 ...

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