In August 2012, MBCR and Keolis were the two bidders for the contract. On January 8, 2014, the MBTA awarded Keolis the contract for $2.68 billion over eight years, with the possibility of two two-year extensions that could bring the total price to $4.3 billion. Keolis took over the operations on July 1, 2014. Keolis lost $29.3 million in its first year of operation. In June 2020, the MBTA extended the contract through at least 2025. The final segment of the system to have Positive Train Control activated was the inner Worcester Line on August 15, 2020.