The National Transportation Safety Board (NTSB) investigated wrong-way driving crashes and also held a two-day forum last spring in Washington, D.C., called “Reaching Zero: Actions to Eliminate Substance-Impaired Driving.” As a result of these efforts, the NTSB tasked the IACP and the National Sheriffs’ Association (NSA) with Safety Recommendations H-12-37 and H-12-49.