In 2010, the Federal Motor Carrier Safety Administration (FMCSA) replaced the previous SafeStat System with a new Safety Measurement System (SMS) in an effort to quantify the performance of drivers and carriers as well as identify those who are at high risk of an accident. Since then, groups have been lashing out over the misrepresentation of publicized motor carrier rankings, which many argue have led brokers and carriers to lose significant business with some of their major accounts. So in December 2015, Congress passed a proposal, part of the Fixing America's Surface Transportation (FAST) Act, making CSA scores (which contain six categories: unsafe driving, hours of service compliance, vehicle maintenance, controlled substances/alcohol use, hazardous materials compliance, and driver fitness measured via nearly 3.5 million roadside inspections a year) private until the system is corrected.