The Minnesota Office of Cannabis Management (OCM) has frozen the license of cannabis testing lab Legend Technical Services for failing to address “security and testing requirements,” the Star Tribune reports.

Legend was originally licensed to test cannabis products under the state’s medical program. However, to help facilitate the launch of adult-use sales, regulators approved the lab in September 2025 to begin testing products for both markets. The lab was also allowed to continue using its testing methodologies for adult-use products despite different requirements under the new regime — regulators sent a letter this week notifying Legend and its clients that the lab’s special approval had expired.

“Our commitment to public health and safety requires us to hold all license holders to the same standards, and there are steps that Legend must take to address the issues identified in the variances. These requirements are no different than what is required of all licensed testing facilities.” — OCM spokesperson Josh Collins, in the report

Tom Barrett, the vice president of Legend Technical Services, told the Tribune that the company has delivered most of the information requested by the OCM. The rest of the info should be sent over by the end of the week, Barrett said, although it’s unclear when the lab will be able to resume testing. In the meantime, the company is returning over 400 samples to its clients since it is unable to fulfill the requests.

There are currently only four testing labs licensed by the state to test cannabis products, including Legend.

In the OCM letter to affected businesses, officials wrote, “We understand that this is unwelcome news and will cause a disruption for your business operations.”

Meanwhile, in March, Gov. Tim Walz (D) signed a law allowing hemp product manufacturers to continue using out-of-state testing labs until next spring due to the limited number of labs licensed to operate in Minnesota.

Based in Portland, Oregon, Graham is Ganjapreneur's Chief Editor. He has been writing about the legalization landscape since 2012 and has been contributing to Ganjapreneur since our official launch in...