In this Oct. 24, 2016, file photo, marijuana samples await testing at CannTest, the first commercial marijuana testing laboratory to open in Alaska, in Anchorage, Alaska. Ohio's regulations for prospective medical marijuana cultivators were finalized Monday, April 17, 2017, and application forms were released Friday, April 21, 2017, including a requirement for marijuana testing at an in-state, public university. (AP Photo/Dan Joling, File)