WMATA issues RfPs for new 8000-series railcar procurement, US September 5, 2018 | North America News The Washington Metropolitan Area Transit Authority (WMATA) has issued a request for proposals (RfPs) for the design and construction of 256 railcars of the 8000-series, with the option to procure up t... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password