The U.S. Transportation Security Administration (TSA) made a significant change to its security directive for owners and operators of hazardous liquid and natural gas pipeline and liquified natural gas facilities, with the goal "to reduce the risk that cybersecurity threats pose to critical pipeline systems." Security Directive Pipeline-2021-02C, which supersedes and replaces Pipeline-2021-02B, went into effect just five days later, on July 27 and reflects lessons learned by the TSA after working with industry stakeholders and other federal agencies for the past year.
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