A major pipeline company has an inventory of approximately 2500 cased crossings throughout the various regions of Canada and the USA. Emphasis for managing and controlling corrosion within cased pipeline crossings is increasing from both an operator and regulatory perspective. Understanding the causes and characteristics of carrier pipe corrosion is an important step towards improved integrity management of cased crossings. An excavation at a cased highway location is a complicated and intrusive process considering the impact to traffic and the numerous permits to be in place prior to initiating any repair activity. Execution of repair activities under these circumstances is also very expensive and time constrained.The pipeline industry has recognized these challenges and responded with a proactive solution to prevent situations of this nature. A vapor phase corrosion inhibitor gel solution is being applied to control the corrosiveness of the environment within the annular space of casing and continually monitored using remote telecommunication technologies. The technique is very effective on a case by case basis; however due to the number of casings within the system it becomes impractical to qualify the entire inventory. Subsequently a prioritization method has been developed to select cased crossings that require immediate mitigation and also schedule long range repair planning. The innovative and systematic process evaluates critical information and attributes within an expert environment using established decision making techniques. Priority for all locations is determined by structuring a hierarchy of criteria and eliciting technical judgment of company’s SMEs stakeholders and unbiased industry specialists. Experts’ opinion are supported by combining CP and ILI results within a structured multi-criteria decision making matrix to create an enterprise listing for the casing management program. The prioritization is the result of a multi-step procedure comprised of statistical and analytical evaluation of all documented casings with the accompanying critical parameters. Significant factors include coating type and electrical isolation status in conjunction with metal loss information reported from inline inspection programs. These parameters are ranked using the analytical hierarchy process (AHP) and the interacting behaviors are trended in a statistical manner to quantify the corrosion susceptibility of the carrier pipe within a casing. Location of the cased crossing and operability of the pipeline are also used in determining the final risk factors. The computed risk identifies those casings requiring immediate repair and provide direction for scheduling long term mitigation activities where corrosion is less severe. The process has delivered the necessary insight to develop strategies for ranking cased segments within the external corrosion management pipeline integrity program.Key words: casings cased pipeline volatile corrosion inhibitor VCI corrosion management analytical hierarchy process AHP