A travelers' information station (TIS), also called highway advisory radio (HAR) by the United States Department of Transportation, is a licensed low-powered non-commercial radio station, used to broadcast information to the general public, including for motorists regarding travel, destinations of interest, and situations of imminent danger and emergencies. They are commonly operated by transportation departments, national and local parks departments and historic sites, airport authorities, local governments, federal agencies, colleges and universities, hospitals and health agencies, and for special events and destinations. United States Current regulations and applications In the United States, most Travelers Information Stations (TIS) are licensed by the Federal Communications Commission (FCC), although stations operated by U.S. national parks and others under U.S. federal government jurisdiction are licensed by the National Telecommunications and Information Administration (NTIA). Programming normally consists of continuously repeated pre-recorded messages. Permissible station content is defined by the FCC as: Most TIS/HAR licenses in the U.S are held by governmental entities, in addition to quasi-governmental agencies and authorities as well as health and emergency service providers working in conjunction with the government. Stations may be licensed to operate on any AM band frequency from 530–1700 kHz. (In a single case—WQFG689, licensed to the County of Hudson, New Jersey—a station has been authorized to transmit on 1710 kHz. 1710 kHz is also in use by a number of federally licensed stations.) {{multiple image|caption_align=center | align = center | direction = horizontal | background color = white | header_background = lightsteelblue | header_align = center | header = Example Installations | total_width = 600 | image1 = Arches National Park TIS.jpg | width1 = 2448 | height1 = 3264 | alt1 = | link1 = file:Arches National Park TIS.jpg | caption1 = TIS Station at Arches National Park in Utah was installed near the park entrance by Information Station Specialists' technicians in November, 2015. | image2 = Travelers Information Station WNJW446, Chapel Hill, North Carolina.jpg | width2 = 753 | height2 = 927 | alt2 = | link2 = file:Travelers Information Station WNJW446, Chapel Hill, North Carolina.jpg | caption2 = 'TIS transmitter with vertical antenna mounted on a telephone pole at the University of North Carolina at Chapel Hill (2019) }} A majority of TIS stations operate on 530 kHz, which is reserved exclusively for use by this service, and on the AM expanded band frequencies of 1610–1700 kHz, which is the least congested portion of