Is an ignition interlock mandatory after a first DUI in South Dakota?

No statute mandates it. SDCL § 32-23-2 requires the court to revoke the license for at least 30 days for a first offense and gives the court discretion to issue a permit for employment, 24/7 sobriety testing and similar purposes, with any restriction lasting no more than one year. An interlock is one testing option within the 24/7 Sobriety Program under ARSD 2:06:02:03(5).

What does the state charge for interlock testing in the 24/7 program?

ARSD 2:06:03:05 sets a $40 enrollment fee and a $20 monitoring fee for each periodic inspection; ARSD 2:06:03:06 sets a participation fee of $1 per day. SDCL § 1-11-30 caps the enrollment fee at $50 and monitoring fees at $20, and provides that installation and operation costs are paid directly to the authorized vendor under a contract with the participant.

Is an SR-22 required to reinstate after a DUI?

Yes. SDCL § 32-35-43 applies the requirement of proof of financial responsibility for the future to anyone convicted of § 32-23-1, and § 32-12-48 requires that future proof be filed with the Department of Public Safety before reinstatement. DPS states most motorists satisfy this with an SR22 filing from their insurer. Under § 32-35-95(1) the filing may be cancelled after three years without a further qualifying conviction.

What is the reinstatement fee?

SDCL § 32-12-47.1 and § 32-12-48 set the reinstatement fee at $100 for a revocation resulting from a first-offense conviction under § 32-23-2, $150 for a second offense (§ 32-23-3), and $200 for a third or subsequent offense, in addition to the application fee. DPS's fee page states reinstatement fees range from $75 to $225 depending on circumstances.

SDVerified against primary sources · August 28, 2026

South Dakota ignition interlock & DUI requirements

Ignition interlock device rules, approved vendors, SR-22 insurance filing, and license reinstatement in South Dakota, cited to the statute and the South Dakota Department of Public Safety, Driver Licensing (24/7 Sobriety Program administered by the Office of the Attorney General).

IID on first offense: At the court's discretion
Minimum IID period (first): Not fixed by statute
SR-22 filing: Required · 3 yr
Reinstatement fee: $100

What South Dakota law requires

South Dakota's ignition interlock, SR-22, and reinstatement rules are set by the statute and agency rules cited below. The values in the tables on this page are taken from those sources and are not interpretations of how they apply to any particular case.

Primary source: S.D. Codified Laws § 32-23-23

Ignition interlock requirement

Ignition interlock requirements in South Dakota by offense
Item	South Dakota rule
IID on first offense	At the court's discretion
Minimum IID period, first offense	Not fixed by statute; any interlock/24/7 condition is set by the court as a permit condition (§ 32-23-2 restrictions may not exceed one year)
Minimum IID period, repeat offense	Not fixed by statute; court-set after a second offense (§ 32-23-3: revocation of not less than one year; driving may be permitted upon completion of a court-approved chemical dependency program and proof of financial responsibility)

South Dakota has no statute mandating an ignition interlock for a first DUI. Under SDCL § 32-23-2 the court must revoke the license for at least 30 days and 'may, in its discretion, issue an order, upon proof of financial responsibility pursuant to § 32-35-113, permitting the person to operate a vehicle for purposes of employment, 24/7 sobriety testing, ...' and may 'restrict the privilege in any manner it sees fit for a period not to exceed one year.' Under § 32-23-23 any such court-issued permit is conditioned on total abstinence and participation in the 24/7 sobriety program (where available) if the person had a prior § 32-23-1 conviction within ten years or a BAC of 0.17 or more. An ignition interlock device is one of six testing methods a 24/7 participant may be placed on under ARSD 2:06:02:03(5), 'if a device is available from a vendor for attachment on the participant's vehicle, the participant possesses a valid driver's license or work permit, and the participant has proof of financial responsibility.' Refusal revocations under § 32-23-11 carry a separate DPS work-permit process.

Approved interlock providers

Vendors listed here appear on the South Dakota licensing agency's approved-device list. Listing order is alphabetical and is not a ranking or endorsement. Installation locations are on each vendor's own locator.

South Dakota publishes no approved ignition-interlock device or vendor list. An interlock is one testing option under the 24/7 Sobriety Program (ARSD 2:06:02:03(5)), and the rules require only that the device be installed by a manufacturer's authorized vendor; no list appears on atg.sd.gov, sd.gov/dps, or in ARSD 2:06.

Official approved-vendor list: none published by the state

SR-22 requirement

An SR-22 is a certificate an insurer files with the state to confirm that a driver carries the liability coverage the state requires. Some states use an FR-44 or a different form for alcohol-related offenses; where South Dakota does, the sources below say so.

SR-22 requirement in South Dakota
SR-22 filing required after a DUI	Yes
Filing period	3 years

SR-22 ('proof of financial responsibility for the future'). SDCL § 32-35-43 applies the future-proof requirement to any person convicted of § 32-23-1 (DUI); § 32-12-48 conditions DUI reinstatement on future proof being 'filed with the Department of Public Safety as required by chapter 32-35'; § 32-35-65 provides the proof may be an insurer's certificate. DPS states that a driver whose license was revoked or suspended following a DUI 'must establish proof of financial responsibility for the future' and that 'Most motorists provide proof of financial responsibility for the future by obtaining a SR22 insurance filing.' Duration: § 32-35-95(1) allows the department to cancel the filing 'at any time after three years from the date such proof was required' if no further qualifying conviction occurred; DPS's page states three years expressly only for a no-insurance conviction.

Compare SR-22 rules in every state

Program costs

Fees set by the state are cited to the fee schedule. Vendor charges vary by vendor and are shown as published ranges with the month they were checked.

Post-DUI program costs in South Dakota
Item	Amount	As of
License reinstatement fee	$100	2026-08-28
Driver license reinstatement fee after revocation for first-offense DUI (SDCL § 32-12-47.1(1)(a); § 32-12-48(1)); second offense $150; third or subsequent $200; DPS states reinstatement fees range from $75 to $225 and an application fee also applies	$100	2026-08
24/7 Sobriety Program participation fee for ignition interlock testing (ARSD 2:06:03:06(1); SDCL § 1-11-32 caps it at $3 per day)	$1 per day	2026-08
24/7 ignition interlock enrollment fee (ARSD 2:06:03:05; SDCL § 1-11-30 caps it at $50)	$40	2026-08
24/7 ignition interlock monitoring fee for each periodic inspection (ARSD 2:06:03:05; SDCL § 1-11-30 caps it at $20)	$20 per inspection	2026-08
Device installation/lease costs are paid directly to the authorized vendor under a contract between vendor and participant (SDCL § 1-11-30); not a state-set fee	set by vendor	2026-08

Frequently asked questions

Is an ignition interlock mandatory after a first DUI in South Dakota?: No statute mandates it. SDCL § 32-23-2 requires the court to revoke the license for at least 30 days for a first offense and gives the court discretion to issue a permit for employment, 24/7 sobriety testing and similar purposes, with any restriction lasting no more than one year. An interlock is one testing option within the 24/7 Sobriety Program under ARSD 2:06:02:03(5).
When is 24/7 Sobriety Program participation required with a court permit?: Under SDCL § 32-23-23, any driving permit issued by the court to a person convicted of DUI is conditioned on total abstinence and participation in the 24/7 sobriety program (where available) if the person had a prior DUI conviction within ten years or a BAC of 0.17 or more. The court must revoke the permit on proof by a preponderance of the evidence that the condition was violated.
What does the state charge for interlock testing in the 24/7 program?: ARSD 2:06:03:05 sets a $40 enrollment fee and a $20 monitoring fee for each periodic inspection; ARSD 2:06:03:06 sets a participation fee of $1 per day. SDCL § 1-11-30 caps the enrollment fee at $50 and monitoring fees at $20, and provides that installation and operation costs are paid directly to the authorized vendor under a contract with the participant.
Is an SR-22 required to reinstate after a DUI?: Yes. SDCL § 32-35-43 applies the requirement of proof of financial responsibility for the future to anyone convicted of § 32-23-1, and § 32-12-48 requires that future proof be filed with the Department of Public Safety before reinstatement. DPS states most motorists satisfy this with an SR22 filing from their insurer. Under § 32-35-95(1) the filing may be cancelled after three years without a further qualifying conviction.
What is the reinstatement fee?: SDCL § 32-12-47.1 and § 32-12-48 set the reinstatement fee at $100 for a revocation resulting from a first-offense conviction under § 32-23-2, $150 for a second offense (§ 32-23-3), and $200 for a third or subsequent offense, in addition to the application fee. DPS's fee page states reinstatement fees range from $75 to $225 depending on circumstances.