The top US pipeline regulator on 26 May announced it would take steps to implement safety measures to protect against carbon dioxide (CO2) pipeline failures and strengthen pipeline safety after its investigation into a CO2 pipeline leak in Mississippi in 2020.
The US Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) will require all pipeline operators "to plan for and mitigate risks related to land-movements and geohazards that pose risks to pipeline integrity," the regulator said in a release.
PHMSA aimed to update its safety standards for CO2 pipelines, which would include requirements related to emergency preparedness and response, it added.
The safety measures were aimed at preventing incidents such as in 2020, when a failure of Denbury Gulf Coast Pipelines' 24-in. CO2 pipeline in Satartia, Mississippi, resulted in local evacuations and caused almost 50 people to seek medical attention.