Missouri HB 1804 Modifies Ignition Interlock Device Rules

Overview

Representative Mark Sharp introduced House Bill 1804 ahead of the Missouri legislative session to alter ignition interlock device requirements. The measure targets motorists convicted of intoxication-related traffic offenses across the state. Under the statutory update, lawmakers seek to refine when courts and the Missouri Department of Revenue mandate breath alcohol testing devices in personal vehicles.

Key Provisions

• Mandatory Device Requirements: Adjusts the timeframe and threshold offenses that trigger required ignition interlock installation before reinstatement.

• Compliance Tracking: Tightens monitoring guidelines to ensure individuals maintain certified devices without tampering or failing rolling retests.

• Court Discretion Adjustments: Clarifies judicial authority regarding exemptions and alternative monitoring options for eligible offenders.

Impact on Drivers

Any driver facing an intoxication-related arrest or administrative license suspension faces direct consequences under HB 1804. Drivers must bear the financial cost of leasing, installing, and servicing certified interlock devices. Failing to install a mandated unit prevents full license restoration. Repeat offenders face stricter supervision windows, prolonging the timeline before regaining unconditional driving privileges.

Current Law vs Proposed Changes

• Current: Missouri law requires ignition interlock devices primarily for repeat intoxicated driving offenders and certain first-time offenders with elevated blood alcohol concentrations seeking limited driving privileges.

• Proposed: HB 1804 modifies qualifying criteria and verification rules, restructuring installation mandates across specific intoxication offenses to ensure consistent device usage.

What This Means For You

Keep track of your case status if you currently face alcohol-related traffic charges in Missouri. An ignition interlock order adds monthly maintenance expenses and requires regular calibration appointments. Check Department of Revenue records to verify your exact reinstatement requirements. If lawmakers advance HB 1804, consult defense counsel to determine whether your eligibility dates or compliance obligations change under the revised rules.

Source: Official MO legislative records. Consult a licensed attorney for legal advice.