WASHINGTON, DC – The Chemical Safety Board (CSB) has released a final report on the uncontrolled oleum release from INDSPEC Chemical Corp. in Petrolia, PA, which forced the evacuation of three surrounding towns in October 2008. In the report, the CSB encouraged companies that handle hazardous chemicals to follow proper management-of-change procedures, monitor deviations from written operating procedures, and implement appropriate safeguards to mitigate human errors.