Driving with excessive blood alcohol content - sentencing restrictions.
Mo. Rev. Stat. § 577.012
in effect577.012. Driving with excessive blood alcohol content — sentencing restrictions. — 1. A person commits the offense of driving with excessive blood alcohol content if such person operates:
(1) A vehicle while having eight-hundredths of one percent or more by weight of alcohol in his or her blood; or
(2) A commercial motor vehicle while having four one-hundredths of one percent or more by weight of alcohol in his or her blood.
2. As used in this section, percent by weight of alcohol in the blood shall be based upon grams of alcohol per one hundred milliliters of blood or two hundred ten liters of breath and may be shown by chemical analysis of the person's blood, breath, saliva or urine. For the purposes of determining the alcoholic content of a person's blood under this section, the test shall be conducted in accordance with the provisions of sections 577.020 to 577.041 .
3. The offense of driving with excessive blood alcohol content is:
(1) A class B misdemeanor;
(2) A class A misdemeanor if the defendant is alleged and proved to be a prior offender;
(3) A class E felony if the defendant is alleged and proved to be a persistent offender;
(4) A class D felony if the defendant is alleged and proved to be an aggravated offender;
(5) A class C felony if the defendant is alleged and proved to be a chronic offender;
(6) A class B felony if the defendant is alleged and proved to be a habitual offender.
4. A person found guilty of the offense of driving with an excessive blood alcohol content as a first offense shall not be granted a suspended imposition of sentence:
(1) Unless such person shall be placed on probation for a minimum of two years; or
(2) In a circuit where a DWI court or docket created under section 478.007 or other court-ordered treatment program is available, and where the offense was committed with fifteen-hundredths of one percent or more by weight of alcohol in such person's blood, unless the individual participates in and successfully completes a program under such DWI court or docket or other court-ordered treatment program.
5. If a person is not granted a suspended imposition of sentence for the reasons described in subsection 4 of this section:
(1) If the individual operated the vehicle with fifteen-hundredths to twenty-hundredths of one percent by weight of alcohol in such person's blood, the required term of imprisonment shall be not less than forty-eight hours;
(2) If the individual operated the vehicle with greater than twenty-hundredths of one percent by weight of alcohol in such person's blood, the required term of imprisonment shall be not less than five days.
6. If a person is found guilty of a second or subsequent offense of driving with an excessive blood alcohol content, the court may order the person to submit to a period of continuous alcohol monitoring or verifiable breath alcohol testing performed a minimum of four times per day as a condition of probation.
7. A person found guilty of driving with excessive blood alcohol content:
(1) As a prior offender, persistent offender, aggravated offender, chronic offender or habitual offender shall not be granted a suspended imposition of sentence or be sentenced to pay a fine in lieu of a term of imprisonment, section 557.011 to the contrary notwithstanding;
(2) As a prior offender shall not be granted parole or probation until he or she has served a minimum of ten days imprisonment:
(a) Unless as a condition of such parole or probation such person performs at least thirty days of community service under the supervision of the court in those jurisdictions which have a recognized program for community service; or
(b) The offender participates in and successfully completes a program established under section 478.007 or other court-ordered treatment program, if available, and as part of either program, the offender performs at least thirty days of community service under the supervision of the court;
(3) As a persistent offender shall not be granted parole or probation until he or she has served a minimum of thirty days imprisonment:
(a) Unless as a condition of such parole or probation such person performs at least sixty days of community service under the supervision of the court in those jurisdictions which have a recognized program for community service; or
(b) The offender participates in and successfully completes a program established under section 478.007 or other court-ordered treatment program, if available, and as part of either program, the offender performs at least sixty days of community service under the supervision of the court;
(4) As an aggravated offender shall not be eligible for parole or probation until he or she has served a minimum of sixty days imprisonment;
(5) As a chronic or habitual offender shall not be eligible for parole or probation until he or she has served a minimum of two years imprisonment; and
(6) Any probation or parole granted under this subsection may include a period of continuous alcohol monitoring or verifiable breath alcohol testing performed a minimum of four times per day.
(L. 1975 S.B. 32, A.L. 1982 S.B. 513, A.L. 1996 H.B. 1169 & 1271 merged with S.B. 722, A.L. 2001 H.B. 302 & 38, A.L. 2010 H.B. 1695, et al., A.L. 2014 S.B. 491, A.L. 2015 S.B. 254, A.L. 2016 H.B. 2332) Effective 1-01-17 (1986) Probable cause that a person had been "driving" under these sections was found even though the machine stands motionless, where such person is found unconscious behind the wheel with the motor running and the transmission in "drive". Dalton v. McNeill, 713 S.W.2d 26 (Mo.App.W.D.)
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://revisor.mo.gov/main/OneSection.aspx?section=577.012Fetched: 10/17/2026