On June 25, 2010, Congress confirmed the appointments to the two last vacant positions on the U.S. Chemical Safety Board ("CSB"): Dr. Rafael Moure-Eraso, as CSB Chairman; and Mark Griffon, as CSB Member. On June 18, 2010, the CSB also informed Congressmen Waxman and Stupak, of the House Committee on Energy and Commerce, that the CSB intends to investigate the April 20, 2010 Deepwater Horizon oil rig explosion. This investigation is occurring in response to a request made by the Congressmen earlier in June. The CSB, in operation since 1998, is an independent agency charged with investigating industrial chemical incidents. It has no authority to issue fines or citations, but its recommendations are often relied on by other government agencies, industry organizations, and unions.
In its June 18, 2010 letter confirming that the CSB intends to proceed with its investigation of the "root causes" of the Deepwater Horizon incident, then Chairman John Bresland stated that the CSB was uniquely able to assess the incident due to its "past work on BP's culture and corporate safety oversight." In particular, it noted that CSB's investigators of the Deepwater Horizon incident will include those who investigated the March 23, 2005 explosion at BP's Texas City refinery. However, the CSB emphasized that it did not intend to investigate the response to, or the impact of, the Gulf oil spill.
Finally, the CSB informed Congress that to conduct the Deepwater Horizon explosion investigation it would need to rapidly wind down or terminate other investigations, and that it would be requesting additional funding, as needed, from Congress. The CSB noted that the investigation of the Texas City refinery incident alone cost the agency approximately $2.5 million. In its letter, the CSB did not inform Congress of any target date for the conclusion of its Deepwater Horizon investigation.