Kansas Ignition Interlock — Requirements & Costs

An ignition interlock device (IID) is a breathalyzer wired into your vehicle's ignition system. It prevents the engine from starting if it detects alcohol on your breath above a preset threshold §8-1014; §8-1015. In Kansas, IID requirements are a central part of DUI consequences.

mandatory after suspension period for test refusals, test failures and alcohol or drug-related convictions, including first occurrence.

180 days (first offense, BAC < 0.15; 1 year if division records show specified prior convictions or a prior revocation, suspension, cancellation or withdrawal); 1 year (first offense, BAC ≥ 0.15); escalates with subsequent offenses up to 10 years.

Common violations that can extend the IID period or trigger additional consequences:

• Failed startup tests (BAC above threshold)
• Failed rolling retests
• Missed calibration appointments
• Tampering with or attempting to circumvent the device
• Operating a vehicle without an IID when one is required

IID costs are borne by the offender and include:

• Installation fee
• Monthly monitoring/rental fee
• Removal fee
• Calibration fees (may be included in monthly rental or charged separately)

While the IID is a restriction, it is also the mechanism that allows many offenders to resume driving sooner than they would under a full suspension. In Kansas, Restricted driving with IID is available during the restriction period after the hard suspension. Complying fully with IID requirements — no violations, on-time calibration — is the fastest path to full reinstatement.