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CSB News and Resources

CSB publishes Cuisine Solutions ammonia release final report

September 25, 2025 · The U.S. Chemical Safety Board found emergency response plans and training to be inadequate in its final report on the 2024 toxic ammonia refrigerant release at Cuisine Solutions.

CSB issues update on Horizon Biofuels explosion investigation

September 18, 2025 · Preliminary evidence indicates a combustible wood dust explosion occurred at the Horizon Biofuels facility in Fremont, Nebraska. The structure remains unsafe to enter, delaying the investigation.

CSB releases video animation of 2019 ITC petrochemical fire

September 11, 2025 · The U.S. Chemical Safety Board released an accident reconstruction animation of the 2019 ITC Deer Park petrochemical fire, issuing eight recommendations to ITC, OSHA, EPA, and API.

CSB recommendations to Didion Milling left unanswered

September 8, 2025 · Combustible dust explosions at Didion Milling's Wisconsin facility in 2017 killed five and seriously injured 14. Nine CSB safety recommendations are left unanswered despite outreach.

CSB investigating fatal Horizon Biofuels explosion

September 2, 2025 · Horizon was cited by OSHA in 2012 and the state Dept. of Environment & Energy in 2025 for combustible dust buildup, which may have caused the July 29 explosion that killed three.

Four trends in the CSB’s Volume 3 chemical incident reports

September 2, 2025 · Volume 3 of the CSB’s chemical incident reports cover 30 incidents from 2020 to 2025 that caused two deaths, 25 serious injuries, and $1.8 billion in damage across 15 states.