Regulator Keywords: Advanced Search Directory View All Listings Sort By:Default Business Name Canada Energy Regulator Business Name Canada Energy Regulator Stakeholder Regulator Address 517 10th Ave SW, Calgary Website www.cer-rec.gc.ca Electrical Safety Authority Business Name Electrical Safety Authority Stakeholder Regulator Address 155A Matheson Blvd. West, Suite 200, Mississauga Website http://www.esasafe.com/ Ontario One Call Ltd Business Name Ontario One Call Ltd Stakeholder Regulator Address 104 Cooper Road Unit 1, Guelph Website www.OntarioOneCall.ca TSSA Business Name TSSA Stakeholder Regulator Address 3300 Bloor Street West, 14th Floor, Centre Tower, Toronto Website www.tssa.org