Section 586.280 - Prohibition against operating a warehouse or issuing a warehouse receipt without a license(1) No person operating a public warehouse within this state shall issue any negotiable grain warehouse receipt for grain for storage purposes unless the person is at the time licensed so to do, either by the State Department of Agriculture or by the United States Department of Agriculture.(2) No person shall operate a public warehouse in this state without a license under ORS 586.210 to 586.730.