Like a lot of other useful consumer tech, electronic toll collection (ETC) came from the armed forces. It was derived from the military-spec identification technology known as "friend or foe" (IFF), which allowed access for certain vehicles to enter certain areas. First implemented for regular people in Norway in 1986, ETC has spread around the world, making drivers still paying with hard currency pissed to all hell when they have to wait in a congested cash lane when the E-ZPass lanes are wide open.