U.S. Chemical Safety and Hazard Investigation Board

Public SafetyPennsylvania, United States51-200 Employees

The CSB is an independent, non-regulatory federal agency focused on chemical safety. It investigates the root causes of major chemical incidents to protect communities, workers, and the environment and to promote safety excellence, operating as a small to mid-sized scientific agency. It is based in Pennsylvania, United States and governed by a five-member board appointed by the president and confirmed by the Senate.

Investigations involve examining incident scenes, analyzing process data, interviewing witnesses, metallurgical testing, and laboratory work, with a formal written report prepared and adopted by the board. Reports and accompanying safety recommendations are publicly available and directed to companies, trade organizations, labor groups, and government agencies to drive safety improvements; the CSB also produces safety bulletins, videos, and articles, including safety videos on YouTube. In 2026, the CSB continued expanding its incident summaries to cover more recent events.

Sign up for free to view info

Email Format Employee directory