Colorado was one of the first two states to legalize cannabis for recreational use. This made Colorado a haven for marijuana users who preferred not to run afoul of the law. However, moving almost always means finding new employment, which often includes a drug test. For habitual users, passing one is next to impossible as marijuana can remain in the body for a month or more. 

CNN notes that Colorado’s laws allowing recreational use took effect in 2014. It allows people who are 21 years or older to purchase and consume marijuana. However, the law does not prohibit employers from using drug tests as part of their screening process. Businesses may require a drug test before or during the course of employment. If an employee fails that test, the company has the right to terminate them. 

This is the case even when the marijuana that shows up in the system is due to a medical prescription. One reason for the contradiction may be that marijuana use is still illegal under federal law. This allows companies to maintain a zero-tolerance policy. It is important for people in the workforce to remain aware of this and keep up with the drug testing policies at their place of work. 

In 2017, NPR reported that many Colorado employers were now rethinking the need for a drug test. Managers seem to have tired of missing out on key talent in the industry due to legal and recreational drug use. After all, estimates say that one in every seven adult Colorado residents uses marijuana. However, some employers may still consider drug tests to check for illicit substances, such as heroin or cocaine.