These Oregon Universal Symbol labels are the authorized method of signifying that your product contains cannabis when being sold in the state of Oregon. Not only are these flashy labels courteous, but as of October 1, 2016, they’re mandatory per Oregon marijuana law. Specially designed to meet all of the requirements stated in the OAR 333-007 guidelines, these warning stickers are a surefire way to stay on the up and up in the state of Oregon.