GULF SOUTH PIPELINE COMPANY, LLC — Integrity Assurance Notification

PROGRAMOpIDs under this Program Notification 40274, 39138, 40801, 39210, 39701, 31728, 19270, 39470 Pursuant to 49 CFR 192.909(b), Boardwalk Pipelines, LP (Boardwalk) provides notification that it has significantly changed its Integrity Management Program (IMP), effective January 4, 2024. These changes impact all Boardwalk subsidiaries; those regulated by 49 CFR 192 are listed below along with their interstate/intrastate status and the states in which each subsidiary operates. To summarize the change, Boardwalk has implemented a probabilistic risk assessment (PRA) model applicable to all assets under the jurisdiction of 49 CFR 192. The PRA model will be used to execute risk assessment and threat identification requirements within Boardwalk’s IMP.#