An Environmental Protection Agency (EPA) air monitoring device is mounted to a post following the train derailment in East Palestine, Ohio, Tuesday, April 4, 2023. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Matt Rourke)
Becky Rance, center, and Waddle Colley hand out water in downtown East Palestine, Ohio, as the cleanup of portions of a Norfolk Southern freight train that derailed over a week ago continues, Wednesday, Feb. 15, 2023. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Gene J. Puskar)
FILE - A cleanup worker stands on a derailed tank car of a Norfolk Southern freight train in East Palestine, Ohio, continues, Feb. 15, 2023. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Gene J. Puskar, File)
A sign thanking Norfolk Southern Railroad, the Ohio EPA and the Federal EPA and all workers who helped East Palestine, Ohio recover hangs on a business in East Palestine, Ohio, Wednesday, June 12, 2024. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Gene J. Puskar)
FILE - A sign reads "Keep Out Testing & Cleaning in Progress" near the Sulphur Run Creek as it flows under homes near the 2023 Norfolk Southern train derailment in East Palestine, Ohio on Wednesday, June 12, 2024. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Carolyn Kaster, File)
Jennifer Homendy, chair of the National Transportation Safety Board, speaks during a board meeting concerning the February 3, 2023, train derailment of a Norfolk Southern freight train carrying hazardous materials, Tuesday, June 25, 2024, in East Palestine, Ohio. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Sue Ogrocki)
FILE - A black plume rises over East Palestine, Ohio, as a result of the controlled detonation of a portion of the derailed Norfolk Southern trains Monday, Feb. 6, 2023. The National Transportation Safety Board’s daylong hearing on what caused the East Palestine derailment and how to prevent similar disasters gave the community, railroads and policymakers plenty to think about. (AP Photo/Gene J. Puskar, File)