On April 12, 2023 (88 FR 22089), the Pipeline and Hazardous Materials Safety Administration (PHMSA) published a Notice in the Federal Register (FR) requesting input on the development of the 2024 edition of the Emergency Response Guidebook (ERG2024) during a public meeting that will take place virtually on Tuesday May 16, 2023. DOT requests that attendees pre-register for this meeting. The meeting will be hosted on Microsoft Teams and a conference call line will be provided upon registration by completing the form at https://www.phmsa.dot.gov/research-and-development/hazmat/rd-meetings-and-events PHMSA will solicit comments related to new methodologies and considerations for future editions of the ERG. Additionally, the meeting will include discussions on the outcomes of field experiments, ongoing research efforts to better understand environmental effects on airborne toxic gas concentrations, and updates to be published in the ERG2024.

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PHMSA 04-12-2023 notice ERG update meeting