The percentage of the general workforce who substituted other people’s urine in drug tests surged sixfold to a new peak last year as legalized marijuana use grew nationwide, a report has found. Drug ...

A urine test can detect THC for up to 30 days after use. THC is detectable in blood for the shortest time, up to 12 hours, but can stay longer in heavy users. Hair tests show THC use for the longest ...

LANSING, MI - Most Michigan marijuana customers take for granted that their products are safe and accurately tested, industry ...

California employers are rethinking how they approach workplace drug testing, especially when it comes to THC. For years, the standard answer was simple: order a basic multi-panel urine test that ...

After you use a wax pen, THC may be detectable in your urine for about 30 days, depending on how frequently you use THC, the testing method, and other factors. People can use wax pens to smoke or dab ...

Add Yahoo as a preferred source to see more of our stories on Google. The Oklahoma Medical Marijuana Authority is working to open a state-run testing laboratory to verify product safety. The lab, ...

St. Paul’s Legend Technical Services on Friday laid off at least three employees and notified clients they will no longer ...

Lansing — Construction is set to begin Monday on a multi-million-dollar state-run marijuana testing lab even though the Cannabis Regulatory Agency lacks the authority under state law to collect and ...

PHOENIX – Scientists at Phoenix-based company ElectraTect are working to create a marijuana Breathalyzer to detect recent consumption of THC – the major psychoactive component in marijuana. As ...