This document presents data gathered by the Railway Association of Canada to report under the Locomotive Emissions Monitoring Programme. The information provided covers: annual traffic volume in gross ton-miles and in net ton-miles; annual fuel consumption for main line and branch line service, for yard switching service and for passenger service; annual emissions of oxides of nitrogen, hydrocarbons, oxides of sulphur, particulate matter, carbon monoxide and carbon dioxide; fuel consumption and emissions in the three designated Tropospheric Ozone Management Areas (TOMAs), which are also segregated for the winter and summer periods; and measures being undertaken to reduce fuel consumption and the consequent emissions.