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Hazardous Matters July 2023

Image of tank truck driving into sunset with words "Hazardous Matters" overlayed.

Introducing “Hazardous Matters”—the quarterly newsletter for PHMSA's Office of Hazardous Materials Safety. As always, it is packed with the latest news, expert tips, and essential insights for the safe handling and shipment of hazardous materials.

State Waivers Withdrawn, Expired or Terminated

Withdrawn, Expired or Terminated Pipeline State WaiversOperatorStateDocket NumberIssue DateCalifornia Public Utilities CommissionCaliforniaPHMSA-2025-0007It is closed. Please see for details.Colorado Public Utilities CommissionColorado95A-037GJanuary 24, 2023California Public Utilities...

State Waivers Denial

Denied Pipeline State Waivers Operator State Docket Number Issue Date New Mexico Public Regulation Commission New Mexico PHMSA-2013-0147 June 12, 2017

Safety of Gas Transmission Pipelines Communication

Operator compliance with the pipeline safety regulations is critical to preventing pipeline accidents and incidents. Goals of PHMSA's outreach program for the 2022 Pipeline Safety Improvement Rulemaking are to expand awareness and knowledge of the Final Rule and the new operator requirements to...