Missouri § 302.442 - Cost of interlock device may reduce amount of fine — vehicles affected — proof of compliance, when, report — maintenance cost — calibration checks.

Full text of Missouri Revised Statutes of Missouri § 302.442 — Cost of interlock device may reduce amount of fine — vehicles affected — proof of compliance, when, report — maintenance cost — calibration checks., with citation guidance and answers to common questions.

§ 302.442. Cost of interlock device may reduce amount of fine — vehicles affected — proof of compliance, when, report — maintenance cost — calibration checks.

1.  If a court imposes a fine and requires the use of an ignition interlock device for the same offense, the amount of the fine may be reduced by the cost of the ignition interlock device.

2.  If the court requires the use of an ignition interlock device, it shall order the installation of the device on any vehicle which the offender operates during the period of probation or limited driving privilege.

3.  If the court imposes the use of an ignition interlock device on a person having full or limited driving privileges, the court shall require the person to provide proof of compliance with the order to the court or the probation officer within thirty days of this court's order or sooner, as required by the court, in addition to any proof required to be filed with the director of revenue under the provisions of this chapter or chapter 577.  If the person fails to provide proof of installation within that period, absent a finding by the court of good cause for that failure which is entered in the court record, the court shall revoke or terminate the person's probation or limited driving privilege.

4.  Nothing in sections 302.440 to 302.462 shall be construed to authorize a person to operate a motor vehicle whose driving privileges have been suspended or revoked, unless the person has obtained a limited driving privilege or restricted driving privilege under other provisions of law.

5.  The person whose driving privilege is restricted pursuant to section 302.440 shall report to the court or the probation officer at least once annually, or more frequently as the court may order, on the operation of each ignition interlock device in the person's vehicle or vehicles.  Such person shall be responsible for the cost and maintenance of the ignition interlock device.  If such device is broken, destroyed or stolen, such person shall also be liable for the cost of replacement of the device.

6.  The court may require a person whose driving privilege is restricted under section 302.440 to report to any officer appointed by the court in lieu of a probation officer.

7.  The court shall require periodic calibration checks that are needed for the proper operation of the ignition interlock device.

­­--------

(L. 1995 S.B. 102 § 2, A.L. 2001 H.B. 302 & 38, A.L. 2008 S.B. 930 & 947, A.L. 2014 S.B. 491)

Transferred 2014; formerly 577.602; Effective 1-01-17

---- end of effective  01 Jan 2017 ----

use this link to bookmark section  302.442

Source: official Missouri text · Last verified 2026-08-27

Frequently Asked Questions About Missouri § 302.442

What does Revised Statutes of Missouri § 302.442 cover?

Section 302.442 ("Cost of interlock device may reduce amount of fine — vehicles affected — proof of compliance, when, report — maintenance cost — calibration checks.") is part of the Revised Statutes of Missouri, the codified statutory law of Missouri. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Missouri § 302.442?

A common citation format is "Revised Statutes of Missouri § 302.442" (Missouri). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Missouri law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Missouri official source linked on this page or consult a licensed Missouri attorney.

How does Missouri § 302.442 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Missouri can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Missouri.