The Federal Motor Carrier Safety Administration (FMCSA) recently took another step towards improving safety through its Compliance, Safety, Accountability (CSA) program. On August 3, 2011 Safety Measurement System (SMS) release, FMCSA refined the criteria that determines which motor carriers are subject to the more stringent Hazardous Materials (HM) intervention threshold. This improvement, which was made after several months of careful monitoring and listening to industry and enforcement safety