the system now permitted run-through traffic between central Maine and Boston. By the mid-1980s, Guilford began to rationalize its system and fully one-third of Maine Central's trackage was eliminated, including the "Mountain Division" from Portland to St. Johnsbury, Vermont; the "Rockland Branch" from Brunswick to Rockland; the "Calais Branch" from Bangor to Calais; and the "Lower Road" from Augusta to Brunswick. Guilford also forced many management and salary changes, resulting in a major strike against the company in 1986. Guilford Transportation also moved the Maine Central's headquarters from Portland to North Billerica, Massachusetts, in the mid-1980s. One of the instigating factors which led to the labor strife at Guilford relates to a corporate reorganization at one of the company's former Maine Central properties. After the Calais Branch was abandoned, a small portion of trackage between Calais and Woodland remained in service to a pulp mill. It was joined to the rest of the North American rail network through a connection with the Canadian Pacific Railway at St. Stephen, New Brunswick, and operated through New Brunswick territory for several miles between Calais and Woodland. In order to avoid union agreements that the rest of the rail system was forced to follow, Guilford leased this operation to an obscure B&M subsidiary known as Springfield Terminal Railway, because shortlines operate under different federal rules. Eventually, the corporate reorganization under Springfield Terminal would extend to the full extent of Guilford operations, and attempting to run a class 1 under short line rules would lead to years of union troubles. The former Maine Central locomotive shops in Waterville continue as Guilford's main repair shops. In the early 1990s, Guilford ended its practice of putting the full "Maine Central" name on the long hoods of MEC locomotives. Instead, the locomotives would wear the "Guilford Rail System" moniker, with small "MEC" reporting marks underneath the cab windows. On November 1, 2003, the Morristown and Erie Railway (M&E) took over the former Maine Central "Lower Road" (main line) and Rockland Branch routes (aided by significant public funding from the state Department of Transportation). M&E is operating these state-owned lines as the Maine Eastern Railroad. Prior to M&E, the Rockland Branch had been operated by Safe Handling, and before that, the Maine Coast Railroad. Several railroad preservation and promotion groups are seeking to have the state-owned Calais Branch and Mountain Division routes reactivated for use by short line or