The pilot program requires all people convicted of a DUI in Sacramento, Alameda, Los Angeles and Tulare Counties to have a breath testing device installed in their cars. First offenders have to have it for at least five months, and second offenders have to have it for a year.
The car will not start if there is alcohol on the driver's breath.
These devices have been around for a while, but were rarely required in first offense DUI convictions.
The California DMV website has information about this program: http://dmv.ca.gov/pubs/vctop/d11_5/vc23700.htm
All you need to do is perform a Google search for "DMV Ignition Interlock Device Pilot Program," and you will find quite a bit of information.
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