Many RDCs remained in service throughout the 1970s and 1980s. Amtrak acquired 24 (including three from the "Roger Williams"), mostly for use in Connecticut. The Massachusetts Bay Transportation Authority (MBTA) acquired the B&M's fleet and continued operating them until 1985. The Alaska Railroad acquired five RDCs, three from SEPTA and two from Amtrak between 1984 and 1986. These were all sold or out of service by 2009. Trinity Railway Express acquired thirteen RDCs from Via Rail in 1993 for use on commuter service between Dallas and Fort Worth, Texas. The Denton County Transportation Authority leased several for A-train service pending the arrival of new Stadler GTW 2/6s diesel multiple units.