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Compliance EngineeringEnergy & Utilities10 min read · 2026-06-02

TSA Pipeline Security Directive SD-02D: The Engineering Work Operators Must Complete

12 hrs
TSA SD-02D deadline to report cybersecurity incidents to CISA after detection
TSA Security Directive Pipeline-2021-02D (the fourth revision, issued 2022) imposes mandatory cybersecurity measures on critical pipeline operators — owners of pipelines carrying natural gas, liquid petroleum products, and hazardous liquids. The directive requires network segmentation between OT and IT networks, access control measures for OT systems, continuous monitoring capabilities, and a Cybersecurity Incident Response Plan approved by CISA. The 12-hour incident reporting obligation to CISA is operationally demanding — most pipeline operators have never had a security operations centre capable of meeting it.

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