# COLUMBIA GAS TRANSMISSION, LLC — Warning Letter

- **operation:** document
- **citation:** CPF 220021003
- **title:** COLUMBIA GAS TRANSMISSION, LLC — Warning Letter
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2002-02-28
- **effective on:** Not available
- **summary:** CLOSED warning letter citing 192.479(b), 192.481, 192.491(c), 192.605(a).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-enforcement-220021003.json
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- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-220021003
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/220021003
**body:**

Warning Letter involving COLUMBIA GAS TRANSMISSION, LLC. PHMSA's enforcement data identifies the cited regulations as 192,  192.479(b),  192.481,  192.491(c),  192.605(a). The case was opened on 2002-02-28 and is reported as closed as of 2002-02-28. Open the official case record for notices, responses, orders, and the latest status.

PHMSA lists no public case documents for this record.
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