This white paper presents a process used to develop a framework of a riskA measure of loss in terms of both the incident likelihood of occurrence and the magnitude of the consequences. ranking model to assess the threat due to IO for mainline pipeline assets. It can be used with consequenceThe outcomes or impacts that result from events or incidents related to the pipeline's operation, integrity, or safety. Consequences can range from minor disrup… models to quantify risk and plan for appropriate preventative and mitigative measures (for example, leakThe unintended release of pipeline fluids or gases typically caused by a breach or damage to the pipeline's integrity. Pipeline leaks can occur for various reas… containment at select assets). Facility assets were not considered within this framework.