CN reaches tentative labour agreement with Canada-based rail traffic
controllers

MONTREAL, March 25 /CNW Telbec/ - CN (TSX: CNR) (NYSE:CNI) announced today that it has reached a tentative three-year labour agreement with the union representing approximately 200 rail traffic controllers across Canada.

Details of the agreement with the Teamsters Canada Rail Conference/Rail Canada Traffic Controllers (TCRC/RCTC) are being withheld pending ratification by the union membership. The ratification process is expected to take approximately six weeks. If approved by union members, the new TCRC/RCTC agreement would be retroactive to Jan. 1, 2009.

CN - Canadian National Railway Company and its operating railway subsidiaries - spans Canada and mid-America, from the Atlantic and Pacific oceans to the Gulf of Mexico, serving the ports of Vancouver, Prince Rupert, B.C., Montreal, Halifax, New Orleans, and Mobile, Ala., and the key metropolitan areas of Toronto, Buffalo, Chicago, Detroit, Duluth, Minn./Superior, Wis., Green Bay, Wis., Minneapolis/St. Paul, Memphis, St. Louis, and Jackson, Miss., with connections to all points in North America. For more information on CN, visit the company's website at www.cn.ca.

For further information: Media: Mark Hallman, Director, Communications & Public Affairs, [phone]; Investment Community: Robert Noorigian, Vice-President, Investor Relations, [phone]