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Summary of Enforcement Case Status

Notices of Probable Violation

This table shows the year-by-year status of enforcement cases where alleged violations resulted in PHMSA sending a Notice of Probable Violation to the operator. These Notices may include proposed civil penalties, a proposed compliance order requiring the operator to take one or more corrective actions, or both proposed civil penalties and a proposed compliance order. For example, in 2007, 69 Notices of Probable Violation were issued to address operator non-compliances. To date, 69 (100%) of these cases have been closed, while 0 (0%) remain open.

Cases Involving Notices of Probable Violation: 2002–2024(1)


The 2006 Pipeline Inspection, Protection, Enforcement, and Safety Act gave PHMSA the authority to include a new enforcement tool - the Safety Order, and a final rule was published on January 16, 2009. Training in the use of this new tool was completed in June 2010.


  1. PHMSA Work Management System as of 06/04/2024.

Information provided on this website is intended to enhance public understanding of PHMSA's enforcement program.

Aggregate and company-specific statistical information reflecting PHMSA's enforcement actions is provided beginning with 2002. Key documents associated with new administrative enforcement cases are provided beginning with 2007. Agency orders issued since 2002 are also provided.

The search feature may not retrieve every document associated with each individual enforcement action. Enforcement data is updated monthly as additional cases are initiated and other cases are resolved. Historical totals will change over time to reflect changes in case status.

Contact Us

Office of Pipeline Safety
U.S. Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
United States

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