10/22/2026
Opponents of using hair tests to identify truck drivers with a drug habit claim that hair color, or a person’s ethnic race, can falsify the results of a hair drug test. But new research clearly shows that’s not true. A study of more than 151,000 matched urine and hair drug tests submitted by truck drivers, across 8 different racial groups, found no evidence that hair testing discriminates against anyone.
The research found that Asians, Hispanics, Blacks, Whites, and four other racial groups pass (and fail) hair drug tests at essentially the same percentages. Read the research on hair testing efficacy and fairness ➡️ https://bit.ly/4jB9xsY