Why Test for Recent Cannabis Use?

CCDAPP HL

“Cannabis only causes impairment for a few hours after smoking. But traces of THC can stay in the body in varying amounts for many days or even weeks after a person last used cannabis. Although THC does not cause impairment for days or weeks after use, past use can still trigger a positive drug test. In the era of cannabis legalization, it is important to understand ‘when’ someone used cannabis, not just ‘if.'”

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Windows of impairment and detection

Boulder Weekly HL

“In many states, employees have the legal right to use recreational cannabis,” Lynn says. “Someone could smoke at a barbecue on a Saturday, and risk testing positive [for THC in their blood] on Monday morning.” And their urine and hair would test positive for weeks.”

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Fleets ramping up training on marijuana impairment

BI

“A lot of our non-regulated fleet employers are having to make hard decisions about either eliminating marijuana from their drug-free testing program or eliminating drug testing altogether just to get candidates through the door”

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Impairment testing lags behind state cannabis legalization

TU HL

“‘The difference with the test and the reason why it’s groundbreaking, is it has a window of detection that lasts only a few hours,’ said Doug Boxer, the company’s chief of policy and strategic initiatives.”

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Marijuana Legalization, Testing and Impairment​

PBSA

“As more states legalize marijuana use, employers, providers and legislators grapple with the interplay between legal use, impairment and safety risks at work. The drug testing programs that employers have historically used as an effective deterrence and detection tool are no longer useful when addressing marijuana.”

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