Following the six-day shutdown of the Colonial Pipeline Co. after a ransomware attack, a bi-partisan group of U.S. House lawmakers has revived legislation aimed at formalizing federal agencies’ responsibilities for securing pipelines against threats.

In addition to codifying the responsibility of both the Transportation Security Administration (TSA) and the Cybersecurity and Infrastructure Security Agency for securing pipelines against threats, the legislation would require TSA to update pipeline security guidelines and conduct risk assessments. In addition, the bill would require the TSA to create a personnel strategy for staffing its Pipeline Security Section and improve congressional oversight of TSA’s pipeline efforts.

Rep. Emanuel Cleaver (D-MO), who previously...