After the major cuts by the B&M and the New Haven Railroad in the late 1950s, public opinion in Massachusetts began to favor supporting Boston commuter service to prevent it from being cut entirely. From January 1963 to March 1964, the state Mass Transportation Commission funded an experiment testing various fares and service levels on the two railroads. On August 3, 1964, the Massachusetts Bay Transportation Authority (MBTA) was formed (as an expansion of the MTA funding district) to subsidize suburban commuter rail operations. In December 1964, the MBTA and B&M reached an agreement for the MBTA to subsidize in-district service (within about of Boston) should the ICC applications be approved. Municipalities outside the MBTA district could directly subsidize continued service.