Many Trucking companies have told TalkCDL that they have an alarming amount of drivers calling in with a concern of whether they test for drugs using hair samples. Hair samples go back and detect drug use for years prior to the test compared to the standard urine test most carriers use. Is this a proper question to ask a potential employer? Truckers and drugs. Semi Trucks going down the road high is what DOT is after. If you get caught waisted on the road you could be out of trucking forever! Join us for this discussion and enjoy the show!