In 1967, radar detectors were deemed as illegal as per Wireless Telegraphy Act, 1949. Currently, radar detectors are illegal in nearly all countries except Bulgaria, some states of Canada, China, Czech Republic, Iceland, Israel, Japan, Kazakhstan, Lithuania, Mexico, New Zealand, Pakistan, Philippines, Romania, Russia, Slovenia, South Korea, Taiwan, UK and US (dependent on certain provisions). In United States, detectors can be used legally in private vehicles according to Communications Act of 1934 while these are illegal in public transport as per DOT regulation with certain exceptions.