The U.S. Chemical Safety Board (CSB) has formally announced that “Emergency Planning and Response” and “Preventive Maintenance” are the Board’s newest “Most Wanted Safety Improvements”. The CSB has concluded that inadequate or poor emergency planning or response is a recurring finding in the CSB’s investigations. And that inadequate mechanical integrity programs, delayed or deferred preventive maintenance, and the aging infrastructure of equipment at chemical facilities have been a recurring root cause of incidents investigated by the CSB.