In the federally-regulated pipeline system in 2011, 34 companies transported 191 million cubic metres of oil (1.2 billion barrels) along 17,508 kilometers of active oil mainline and gathering lines; 60 companies transported 151 billion cubic metres of natural gas (5.3 trillion cubic feet) along 52,024 kilometers of active natural gas mainline transmission and distribution lines.

That same year, 5 pipeline accidents were reported to the TSB, down from the 2010 total of 11, and below the 2006–2010 average of 9.

The TSB's team of experts has extensive knowledge and experience in the areas of pipeline engineering, metallurgy, welding and control systems, as well as the pipeline regulatory environment. We have access to and use highly trained specialists and state-of-the-art equipment to examine and test pipeline components involved in occurrences in order to identify and confirm safety deficiencies. TSB pipeline investigators also serve on and actively participate in various government and industry committees, activities and forums in order to monitor trends and promote the safety messages resulting from our investigations.