What an ignition interlock costs in South Carolina
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South Carolina does not publish a price, so the honest answer is the national one: NHTSA puts installation at $70 to $90 and monitoring at about $70 a month, roughly $3 to $4 a day. A quote far above that is the provider's, not the state's.
Three charges make up the bill, not one: fitting the device, keeping it on the car, and taking it out at the end. Over a full term the monthly fee is the bulk of it, which is why a cheap installation on a long requirement costs more than a dearer one on a short.
South Carolina publishes no figure, so here is the national one
NHTSA puts installation at $70–$90 and monitoring at about $70 a month, roughly $3–$4 a day. Only 14 jurisdictions publish their own numbers or cap what a provider may charge; South Carolina is not among them, so a quote well above the national range is the provider’s decision rather than the state’s.
What decides the total in South Carolina
The monthly fee matters less than how long you pay it, and that is set by the requirement rather than the provider. In South Carolina a first offense carries set by the offense under the All Offender Law; drivers who decline to enroll simply stay suspended indefinitely rather than serving a fixed term The programme is run by SC Department of Probation, Parole and Pardon Services, with SCDMV holding the record, which is also who decides whether a recorded event extends it.
That is the part worth budgeting for: events add months, and months are what the bill is made of. What counts as a violation → · All South Carolina rules and centers →
Who operates in South Carolina, and why it changes the price
4 approved networks run in South Carolina: Intoxalock (54), Smart Start (27), LifeSafer (25), ADS Interlock (5). Nothing here caps what any of them may charge, so the quote is the price and two quotes are worth the phone calls.
Where it is fitted in South Carolina
95 certified points in our index. The busiest cities:
Cost questions in South Carolina
How much does an ignition interlock cost in South Carolina?
South Carolina does not publish a price, so the honest answer is the national one: NHTSA puts installation at $70 to $90 and monitoring at about $70 a month, roughly $3 to $4 a day. A quote far above that is the provider's, not the state's.
Does South Carolina cap what a provider can charge?
No. South Carolina does not publish provider prices at all, so the quote is the price. That is the argument for getting two of them: nothing constrains what a provider asks, and in states without a cap the same brand quotes differently in different cities.
What else does South Carolina charge on top of the device?
We have no separate state fee schedule on file for South Carolina. Reinstatement and licensing charges usually sit outside the interlock program itself — check with SC Department of Probation, Parole and Pardon Services, with SCDMV holding the record before you budget.
Where can I have an interlock fitted in South Carolina?
We index 95 certified installation points across 53 South Carolina cities. Book with a provider the state approves rather than the nearest pin on the map: time on an unapproved device does not count toward the term.