Question: How often must periodic integrity assessments be performed on HCA pipeline segments after the baseline assessment is completed?
Answer: Assessments of some kind must be performed at intervals no longer than seven years. Assessments for all threats must be performed using in-line inspection, pressure testing, direct assessment, or "other technology" within the maximum intervals specified in 192.939, which vary based on operating stress levels. (Operators whose integrity management programs satisfy the criteria for "exceptional performance" in 192.913 can establish longer intervals for these assessments, based on their risk assessments). Seven-year assessments conducted within those maximum intervals (if the maximum interval exceeds 7 years) can be performed using confirmatory direct assessment or, for low-pressure pipelines, the methods specified in 192.941.