Editing Ignition interlock device (section)

==History==
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The first performance based interlocks were developed by [[BorgWarner|Borg-Warner]] Corp. (now BorgWarner, Inc.), in 1969. In 1981, Jeffrey Feit, a student in [[New Jersey]], placed in a statewide innovation contest with a primitive schematic of a breathalyzer based interlock device. In 1983, Hans Doran, a student in [[Limerick]], presented a working prototype at the Young Scientist competition in [[Dublin]]. Alcohol-sensing devices became the standard through the 1980s. They employed semiconductor (nonspecific) alcohol sensors. Semiconductor-type (Taguchi) interlocks were sturdy and got the field moving, but did not hold calibration very well, were sensitive to altitude variation, and reacted positively to non-alcohol sources. Commercialization and more widespread adoption of the device was delayed pending improvement of systems for preventing circumvention.

By the early 1990s, the industry began to produce "second generation" interlocks with reliable and accurate fuel cell sensors. In the US, ignition interlocks are required to meet [[National Highway Traffic Safety Administration]] (NHTSA) standards.