is administered by the NPA. Other NPA Units The Immigration Office (入出境管理局) is removed from NPA and attached to the National Immigration Agency and since 2 January 2007. National Highway Police Bureau (國道公路警察局): Jurisdiction over national highways. Harbor Police Offices (港務警察局): Part of border police in Taiwan. There are 4 separate offices with jurisdictions over the ports of Keelung, Taichung, Kaohsiung and Hualien. Railway Police Bureau (鐵路警察局): Jurisdiction over stations and facilities of Taiwan Railway Administration since 1949 and Taiwan High Speed Rail since 26 December 2006. The 1st section: facilities of TRA, north of Taichung in western Taiwan The 2nd section: facilities of TRA, south of Taichung in western Taiwan The 3rd section: facilities of TRA in eastern Taiwan The THSR section: facilities of THSR Aviation Police Bureau (航空警察局): The Airport police is a part of border police and responsible for safeguarding, traffic administration, crime investigation, documents inspection, security examination etc. at local civil airports in the ROC. Its headquarters is at Taiwan Taoyuan International Airport. National Park Police Corps (國家公園警察大隊): Jurisdiction over the national parks, specialization in search and rescue operations. Taiwan Police College Police Armory (警察機械修理廠) Police Telecommunications Office (警察電訊所) Police Radio Station (警察廣播電臺): A government public radio station run by civilians. It broadcasts regular radio show programs, news, and real-time traffic situations. Task-Force Formations under NPA By separate decrees of The Executive Yuan, three task-force formations, each consisted of roughly a couple of hundreds police officers with different specialty, are formed under the National Police Agency but attached to two cabinet-level institutions or other units. Telecommunication Police Corps (電信警察隊): In January 1998, a task force called the "Telecommunication Police Corps" was formed and attached to the Ministry of Transportation and Communications. Since 2 February 2006, the Telecommunication Police Corps are re-attached to the National Communication Commission. Its job is to enforce laws concerning the radio spectrum and telecommunications. Environmental Protection Police Corps (環保警察隊): It was formed in 1999 and is attached to the Environmental Protection Administration. There are currently 192 policemen serving as Environmental Protection Police and assigned to three brigades at Taipei City, Taichung City and Fongshan City in Northern, Central and Southern Taiwan, respectively. Forest & Nature Conservation Police Unit (森林暨自然保育警察隊): This was formed with 178 policemen on 1 July 2004 by the decree of the Executive Yuan on 6 August 2003, after ten forest arson cases in the mountain area of Taichung County