Some maintenance of way equipment that operates exclusively in the state of Maine is owned directly by EMRY.

Irving Ltd. to use New Brunswick Railway Co. Ltd. as a holding company to own both the NBSR as well as its U.S. sister EMRY.

One distinctive section of NBSR's main line is its crossing over the Saint John River approximately 1 mi (1.6 km) west of Mill Street where it crosses the Reversing Falls gorge on the Reversing Falls Railway Bridge.

Irving Ltd directing a certain portion of rail traffic from its various subsidiary companies onto CN's network.

This agreement was in response to the bankruptcy of Canadian American Railroad (reporting mark CDAC) and the possibility of the direct link from Saint John to Montreal being severed beyond Brownville Junction.