CSB Releases Factual Update and New Animation

Detailing the Events of the Massive Explosion and Fire at the PES Refinery in Philadelphia, PA

Recent News

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Next CSB Public Business Meeting October 30th at 11 am

First FY20 Business Meeting will be October 30th

CSB September Public Business Meeting

Wednesday, September 4, 2019 Next CSB Business Meeting is September 17, 2019

Calls Impersonating CSB Investigators

Law enforcement officials have once again been made aware of a recent wave of scams where callers identify themselves as a federal officer and instruct...

Next CSB Public Business Meeting September 17th at 11 am

Thursday, August 8, 2019 CSB September 2019 Public Business Meeting

Emergency Response Safety Message

11/2/2018 4:24:00 PM

A CSB safety message that includes an interim 2D animation highlighting emergency response efforts at Husky Energy's Superior Refinery during the April 26, 2018, explosion and subsequent asphalt fire. The CSB's investigation is ongoing and a final report including findings and recommendations will be released in 2019.

Interim Animation of Pryor Trust Gas Well Blowout and Fire

8/16/2018 3:15:00 PM

Caught in the Storm Extreme Weather Hazards

5/24/2018 3:00:00 PM

CSB Safety Video about the 2017 Fire at the Arkema Chemical Plant in Crosby, Texas, following Hurricane Harvey

About the CSB

The U.S. Chemical Safety Board (CSB) is an independent, nonregulatory federal agency that investigates the root causes of major chemical incidents.

Our mission is to drive chemical safety change through independent investigations to protect people and the environment. The agency was created under the Clean Air Act Amendments of 1990.

IN THE CSB’S 20-YEAR HISTORY, the agency has deployed to over 130 chemical incidents and issued more than 800 recommendations that have led to numerous safety improvements across a wide variety of industries. 

Current Investigations

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KMCO LLC Fatal Fire and Explosion

A fire and explosion at the KMCO custom chemical processing and manufacturing facility caused one fatality and multiple injuries.


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CSB issues safety recommendations to prevent similar incidents or hazards in the future.

View Recent Recommendation Status Updates....

completed Investigations

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DuPont La Porte Fatal Chemical Release

The accident at DuPont’s facility, located east of Houston, killed four workers and injured a fifth when methyl mercaptan, a toxic chemical used in the company’s insecticide and fungicide manufacturing process, was released.


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