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 ...

California employers are rethinking how they approach workplace drug testing, especially when it comes to THC. For years, the ...

With more than 230,000 positive drug tests since 2020, how the trucking industry detects drivers’ drug use is an important topic. Currently, Department of Transportation drug testing relies entirely ...

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 ...

A customer enters the front door of a cannabis retailer in New York. Cannabis retailers say it's hard to sell flower with less than 20% THCa, the form of tetrahydrocannabinol that becomes psychoactive ...

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, ...

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 ...