ATLANTA GAS LIGHT CO — Integrity Assurance Notification

PROGRAMPursuant to 49 C.F.R. §192.909, the purpose of this notification is to make you aware of a significant change to our Integrity Management Plan (IM Plan). Atlanta Gas Light Company (AGL) has added the potential threat of stress corrosion cracking (SCC). While AGL has not previously considered SCC as a potential threat, its presence has been recently identified on one of our transmission pipelines in Georgia.#