{"operation":"document","citation":"CPF 320053001W","title":"NORTHERN NATURAL GAS CO — Warning Letter","source_type":"enforcement","agency":"Pipeline and Hazardous Materials Safety Administration","status":"historical","official":true,"published_on":"2005-03-11","effective_on":null,"summary":"CLOSED warning letter citing 193.2017, 193.2521.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-enforcement-320053001w.json","markdown":"https://regulus.evalyn.ai/document/phmsa-enforcement-320053001w.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-enforcement-320053001w","source_url":"https://primis.phmsa.dot.gov/enforcement-data/case/320053001W","body":"Warning Letter involving NORTHERN NATURAL GAS CO. PHMSA's enforcement data identifies the cited regulations as 193.2017,  193.2521. The case was opened on 2005-03-11 and is reported as closed as of 2005-03-11. Open the official case record for notices, responses, orders, and the latest status.\n\nPHMSA lists no public case documents for this record.","truncated":false,"body_characters":349}