Sheila is currently the Chair of the International Standards Organization (ISO) Technical Committee that oversees the 14000 environmental management standards. She also sits on the boards of the Alberta Electric System Operator and Storm Resources Ltd (SRX- TSE). She is the Chair of TELUS Spark, Calgary's Science Center. Sheila has served on a combination of private, not-for-profit and government agency boards throughout her career.
An underlying theme in Sheila’s activities has been seeking to balance environmental, social and economic aspects of energy projects in Canada. After working as an environmental advisor for a multi-national oil and gas company, she was a partner and eventually President and CEO of an environmental consulting company.
Sheila was appointed first to the Natural Resources Conservation Board (2001) and then to the National Energy Board (NEB) (2006). She was appointed Vice Chair of the NEB in 2008 and completed her term in 2013. While at the NEB, she presided over many hearings, including chairing the Joint Review Panel for the Enbridge Northern Gateway Project.