3 Pa. Stat. § 111.30
When the secretary has reasonable cause to believe a pesticide or device is being distributed, stored, transported, or used in violation of any of the provisions of this act, or of any of the prescribed regulations under this act, he may issue and serve a written "stop sale, use or removal" order upon the owner or custodian of any such pesticide or device. If the owner or custodian is not available for service of the order upon him, the secretary may attach the order to the pesticide or device and shall notify the owner, custodian, and registrant. The pesticide or device shall not be sold, used, or removed until the provisions of this act have been complied with and the pesticide or device has been released in writing under conditions specified by the secretary or the violation has been otherwise disposed of as provided in this act by a court of competent jurisdiction.
3 P.S. § 111.30