By the startup of Amtrak on May 1, 1971, the "Inland Route" was no longer in use, but frequent Penn Central trains continued to serve the New Haven–Springfield Line. Amtrak continued the "Connecticut Yankee" (by that time shortened to Philadelphia-Springfield) along the route. On May 17, 1971, Amtrak added a train between Philadelphia and Boston via the "Inland Route". With the November 14, 1971 timetable, this was assigned the name "Bay State", and extended south from Philadelphia to Washington, DC. The train was discontinued March 1, 1975, though on October 31 of that year, the Boston section of the "Lake Shore Limited" began, restoring Springfield–Boston service.