Warning Letter involving COLORADO INTERSTATE GAS CO. PHMSA's enforcement data identifies the cited regulations as 192.199(g), 192.459, 192.475(b). The case was opened on 2006-03-10 and is reported as closed as of 2006-03-10. Open the official case record for notices, responses, orders, and the latest status.

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Retrieved: Aug 20, 2026
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