Supporting guidelines of the act regulate drone activities in specific areas of seaports: the ports of Keelung, Taipei, Taichung, Kaohsiung, Hualien, Suao, Anping, Budai, Magong, Kinmen and Matsu, the bureau said. Under the new guidelines, drone operators are banned from engaging in behavior that endangers lives or risks damaging property, and cannot fly the devices while under the influence of alcohol or drugs, he said. Drone operators must be on high alert and keep the devices at least 30m from sea vessels and port facilities to ensure they do not compromise port safety, he said. In addition to the act and supporting guidelines, drone operators must abide by the Civil Aviation Act (民用航空法) and Regulations of Drones (遙控無人機管理規則). Prior to the amendments to the Commercial Port Act and supporting guidelines, drones were banned from seaports.