There’s no shortage of online advice for beating an employer drug test meant to check for marijuana use, whether it’s getting a friend to take the test, taking supplements, or flushing chemicals out of your system.

But a desperate search for acing a drug test may soon become a thing of the past for some workers. In 44 states and the District of Columbia, marijuana is legal in some form. As a result, some workplaces and state governments are relaxing their rules regarding drug testing. Employers and proponents of altering zero-tolerance drug policies say it’s OK for their workers to use cannabis on their own time, as long as they’re not using it at work and aren’t impaired while working.