What is an ignition interlock program?

The ignition interlock program is designed to enhance road safety, particularly for individuals who have had previous issues with alcohol-related driving offenses. This program requires drivers to pass a breathalyzer test before they can start their vehicle. The breathalyzer is connected to the vehicle's ignition system, and if it detects alcohol above a predetermined limit, the vehicle will not start. This measure aims to prevent impaired driving and promote responsible alcohol consumption among individuals who may have a higher risk of re-offending.

The other options do not accurately define the purpose and functionality of an ignition interlock program. While the first option suggests a system that prevents starting the vehicle, it does not specify that it is dependent on a breathalyzer test. Monitoring driver speed or controlling navigation, as mentioned in the remaining options, are unrelated to the primary focus of the ignition interlock program, which centers specifically on preventing driving under the influence of alcohol.