RfPs issued to supply 13 hybrid transit buses in King County, US April 18, 2022 | News, North America News King County Metro has issued requests for proposals (RfPs) to supply up to 13 heavy-duty low-floor hybrid transit buses. Each bus should be 60 foot long. Duration of the contract is five years. The la... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password