Your license after a DWI arrest in Missouri

Where the driving record shows no prior alcohol-related enforcement contacts in the immediately preceding five years, the suspension runs thirty days followed by sixty days of restricted driving privilege requiring a functioning certified ignition interlock device, and proof of financial responsibility under chapter 303 must be filed first. Alternatively, filing proof that every vehicle operated is fitted with a certified interlock removes the suspension entirely and substitutes a ninety-day restricted privilege; a confirmed reading above the setpoint, or tampering, during that period adds a further thirty days. Where the record shows one or more prior alcohol-related enforcement contacts in the preceding five years, the period is a one-year revocation instead.

Where a license was revoked, or suspended with one or more prior alcohol-related enforcement contacts, or where the blood alcohol content was fifteen-hundredths of one percent or more, or where the person caused property damage or personal injury, proof of a functioning certified interlock on every vehicle operated is a condition of reinstatement. It must be maintained for at least six months from reinstatement. A confirmed reading above the setpoint, or tampering, in the final three months extends the requirement until three consecutive clean months are completed. Failing to maintain proof suspends or revokes the license again and is itself a class A misdemeanor.

Refusing chemical testing carries a one-year revocation of driving privilege. After the first ninety days a driver may apply, at a judge's discretion, for a hardship privilege covering the remainder of the year for work, school, treatment, transporting children, banking, groceries and medical care. A driver with a prior refusal on record who refuses again faces the same one-year revocation but is NOT eligible for a hardship privilege.