Add Yahoo as a preferred source to see more of our stories on Google. Revised guidelines for drug-testing hair scheduled for publishing next year. (Photo: Jim Allen/FreightWaves) WASHINGTON — The U.S.

A problem that many medical marijuana consumers face is how to pass hair follicle drug tests in the workplace. Yes, they consume it for medical purposes, but it is only accepted as actual medication ...

You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

Hair analysis could be the key to understanding adolescent drug usage, as a new study uncovers almost double the number of children were found to be using substances than those who admitted to in a ...

Proponents of hair-testing for federally required drug testing of truck drivers have had another setback with the denial of a petition to the Federal Motor Carrier Safety Administration ... Or have ...

Boston has settled a decades-old lawsuit over discriminatory hair drug testing for $2.6 million. The test at the heart of the lawsuit was one employed by the Boston Police Department to detect the ...

Urinalysis is the primary, federally accepted method for administering mandated pre-employment drug tests. Meantime, the Alliance for Driver Safety & Security (also known as the Trucking Alliance) has ...