Warning Letter involving CALUMET MONTANA REFINING, LLC. PHMSA's enforcement data identifies the cited regulations as 195.452(f)(8), 195.452(g)(4), 195.452(i)(3), 195.452(i)(4), 195.452(j)(2). The case was opened on 2006-05-03 and is reported as closed as of 2006-05-03. Open the official case record for notices, responses, orders, and the latest status.

PHMSA lists no public case documents for this record.

This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.

Only explicit, source-backed relationships are shown.

Regulations1

Regulation

49 CFR 195.452

Pipeline integrity management in high consequence areas.

195.452(f)(8), 195.452(g)(4), 195.452(i)(3), 195.452(i)(4), 195.452(j)(2) · cited in enforcement

Ask the corpus

Claims link back to retrieved source passages.

Record details

Retrieved: Aug 20, 2026
Version: Source current

576dcc6f0c73173578…