When Jail Is Mandatory in a Michigan OWI Case

Michigan law does not require jail for a first OWI, but it does set mandatory minimums for repeat offenses: a second OWI within 7 years requires at least 5 days in jail or at least 30 days of community service, and a felony third OWI requires prison or probation with at least 30 days in jail.^[1][2][3] Those repeat-offense terms may not be suspended unless the defendant completes a specialty court program.^[4]

The word "mandatory" causes confusion because several of these provisions call for a sentence chosen from a short list rather than jail itself. This page sets out each provision exactly as written, how the minimum may be served, and the one route the statute gives for suspending it. For the full ranges, see the penalties chart.

Offense by offense: what the statute requires

Offense	What the court must impose
OWI 1st or 625(8) 1st	No minimum: "1 or more of" up to 360 hours community service, up to 93 days jail, a $100 to $500 fine.[1]
High BAC 1st (0.17+)	No minimum jail (up to 180 days), but a rehabilitative program of at least 1 year is required.[5][6]
OWVI 1st	No minimum: one or more of up to 360 hours community service, up to 93 days jail, a fine up to $300.[7]
OWI or 625(8), 2nd within 7 years	A $200 to $1,000 fine and one or more of: 5 days to 1 year jail, or 30 to 90 days community service.[2]
OWVI 2nd within 7 years	Same as OWI 2nd.[8]
OWI, OWVI or 625(8), 3rd (any time)	A $500 to $5,000 fine and either 1 to 5 years prison, or probation with 30 days to 1 year jail (48 hours consecutive) plus 60 to 180 days community service.[9][3][8]
Child endangerment 1st (passenger under 16)	A $200 to $1,000 fine and one or more of: up to 1 year jail, or 30 to 90 days community service.[10]
Child endangerment within 7 years of a prior, or after 2+ priors	Felony: a $500 to $5,000 fine and 1 to 5 years prison, or probation with 30 days to 1 year jail (48 hours consecutive) plus 60 to 180 days community service.[11]
Zero tolerance with a child passenger, within 7 years of a prior or after 2+ priors	A $200 to $1,000 fine and one or more of: 5 days to 1 year jail, or 30 to 90 days community service.[12]
Commercial 0.04 (625m), 2nd within 7 years	No minimum stated, but any jail term imposed "must not be suspended."[13]
Commercial 0.04 (625m), within 10 years of 2+ priors	Felony: a $500 to $5,000 fine and either 1 to 5 years prison or probation with 30 days to 1 year jail (48 hours consecutive) and 60 to 180 days community service.[14]
Boating OWI, 2nd within 7 years	A $200 to $1,000 fine and either 10 to 90 days community service or 48 consecutive hours to 1 year jail.[15]

OWI causing death or serious impairment carries a maximum (15 or 5 years, more on the aggravated tiers) but the statute sets no minimum term.^[16][17] Those sentences are shaped by the sentencing guidelines, explained in felony OWI and the sentencing guidelines.

Second offense: "jail or community service"

A common mistake about Michigan OWI law is that a second offense means an automatic 5 days in jail. The statute says the person "must be sentenced to pay a fine of not less than $200.00 or more than $1,000.00 and 1 or more of the following: (i) Imprisonment for not less than 5 days or more than 1 year. (ii) Community service for not less than 30 days or more than 90 days."^[2] The fine is mandatory either way; the judge chooses jail, community service, or both.^[2] The wording is the same for OWVI 2nd.^[8]

Community service ordered under the OWI statute is unpaid, and the defendant must reimburse the state or local government for the cost of supervising it.^[18] Which choice a court makes, and how often, is not published in any official source used for this guide; practice varies by court. See second-offense OWI penalties.

Third offense: prison or probation with jail

For a felony third OWI, the court must impose one of two options: prison under the Department of Corrections for 1 to 5 years, or probation with 30 days to 1 year in the county jail and 60 to 180 days of community service.^[3] On the probation option, "Not less than 48 hours of the imprisonment imposed under this subparagraph must be served consecutively."^[3] The $500 to $5,000 fine applies to both options.^[9] More is in third-offense felony OWI.

When a mandatory term can be suspended

MCL 257.625(9)(d) says: "A term of imprisonment imposed under subdivision (b) or (c) must not be suspended unless the defendant agrees to participate in a specialty court program and successfully completes the program."^[4] The same rule appears for OWVI repeat offenses and for child endangerment.^[19]

• A "specialty court program" is an adult drug treatment court, a DWI/sobriety court, a hybrid, a mental health court, or a veterans treatment court.^[20]
• The exception took effect March 24, 2021, under 2020 PA 383; before that, the statute said only that the term "must not be suspended."^[21]
• No one has a right to be admitted to a treatment court.^[22]
• A treatment court may not dismiss an OWI.^[23]
• A participant who fails out is sentenced on the original plea.^[24]
• The commercial 0.04 offense has no specialty-court exception: its repeat-offense jail "must not be suspended."^[13]

See sobriety courts for eligibility and what completion can change.

How jail time may be served

The statutes above specify only one rule about scheduling: the 48 consecutive hours on the felony probation option (and the 48 consecutive hours that open the boating jail range).^[3][15] General probation law allows a court to order up to 12 months in county jail as a probation condition, "at the time or intervals that may be consecutive or nonconsecutive," and lists work or school release, community service, house arrest and electronic monitoring among possible conditions.^[25]

Whether a particular court will let a mandatory minimum be served on weekends, with work release, or in another form is not settled by any statute or court rule located for this guide. Practice varies by court and county jail. The alternatives to jail page covers the options that have a legal basis.

The non-jail presumption for first offenses

Since March 24, 2021, Michigan law presumes that a person convicted of a misdemeanor, other than a "serious misdemeanor," receives a fine, community service or another non-jail, non-probation sentence; the court may depart if it states reasonable grounds.^[26] A misdemeanor OWI counts as a serious misdemeanor only if it involved an accident causing damage to another person's property, or injury or death.^[27] The Court of Appeals has held that a district court must explain why a jail sentence is more suitable than the presumed non-jail sentence.^[28] How this presumption interacts with the second-offense "jail or community service" requirement has not been addressed in any source located for this guide.

Other required parts of a sentence

• A substance-abuse screening and assessment before sentencing, in every OWI-type case.^[6]
• A rehabilitative program of at least 1 year for high BAC or any prior conviction.^[6]
• Vehicle immobilization on a repeat offense, unless the vehicle is forfeited.^[29][30]

These are covered in how OWI sentencing works and vehicle immobilization.