If Method 2 is being used to identify HCAs, can multiple adjacent HCAs be merged to create a single segment?
The rule addresses only pipeline in high consequence areas. Operators may, at their discretion, include in their integrity management programs additional pipeline segments, such as small non-HCA segments separating HCAs that are near each other, since it may be easier to manage assessments over the single, longer length of pipeline. OPS will evaluate compliance with the rule, including its requirement to complete assessment of 50% of covered mileage by December 17, 2007, considering only mileage determined to be in HCAs in accordance with the criteria in the rule.
