NOTE: Not all ATCO non-metallic pipelines are fitted with a tracer wire and are able to be located by an electromagnetic device, and therefore this option will not be available, in which case, an Approved Locator Must proceed with Quality A proving. Approved Locator Must first seek and receive approval from AGA Damage Prevention Coordinator, AGA Damage Prevention Supervisor or AGA Engineering Services to conduct Quality B locating if not specified on the Notification