In the United States, federal legislation was enacted to consolidate record keeping of the many different State's Department of Transportation. During this time, debates continued on the need for an organization capable of training administration for commercial motor carrier safety. Created in 1986, PTDI is a non-profit charitable organization that is regularly tested by transportation officials for curricula proficiency and standards. Each candidate for licensing of the CDL classes are taught to familiarize themselves with local, regional, State, and National laws governing commercial motor freight.