California IID Rules for a First DUI in 2026

Updated October 13, 2026 · JackDUI editorial team

What is an ignition interlock device?

An IID is a breath-testing device connected to a vehicle’s starting system. The driver provides samples as instructed by the manufacturer. Installation, servicing, reporting, and removal must follow the applicable order and DMV requirements. Do not remove a device just because a calendar period appears to have ended; first confirm that every applicable requirement has been satisfied.

First DUI: court order, optional IID, or restricted driving?

For a first alcohol-related DUI without injury, DMV describes a court-ordered IID period of up to six months. If the court does not order an IID, an eligible driver may choose the IID restriction route or an alternative restriction for travel to work and the DUI program. Those options have different durations and eligibility conditions. An IID restriction is still a restriction, not an unrestricted license.

Repeat offenses and injury convictions follow different rules. DMV describes mandatory IID periods ranging from one to four years for qualifying repeat or injury cases. The statewide program covers qualifying offense dates from January 1, 2019 through December 31, 2032. Drug-only cases, refusals, and other restrictions require separate analysis. Check DMV’s current statewide IID program guidance.

The DMV suspension is separate from your court case

A DUI arrest may produce an Administrative Per Se action before a criminal case ends. For a qualifying first adult alcohol APS case, DMV lists a four-month suspension. A court outcome does not automatically erase every licensing action. Request a hearing within 10 calendar days of receiving the suspension or revocation notice. If you received the notice at arrest, count from your arrest date. Review the actual notice immediately.

Requesting a hearing or hiring an attorney does not itself make driving lawful. Check whether DMV has granted a stay, whether a temporary license remains valid, and whether any other suspension applies. Read DMV’s DUI and hearing information or visit our DMV hearing defense page.

What to prepare before applying for restricted driving

• Your suspension notice, temporary license, and court paperwork.
• The offense and conviction dates, if a conviction has occurred.
• DUI-program enrollment or completion documentation required for your case.
• Proof of financial responsibility, commonly an SR-22, if required.
• Proof of IID installation from an approved provider when applicable.
• Confirmation that other suspensions, revocations, and required fees have been addressed.

Use DMV’s first-offender alcohol, non-injury restriction guide to discuss the correct route with counsel. Eligibility is individual; installing a device alone does not restore driving privileges.

What does an IID cost?

Ask an approved provider for a written total covering installation, lease, monitoring, required service visits, missed appointments, lockouts, removal, and any vehicle-specific charges. Compare the same required period across providers. Ask whether financial assistance is available and what documentation it requires. A low advertised monthly price may omit charges that affect the total.

What if the device reports a problem?

Keep the device report and service records, record the timing and circumstances accurately, and promptly follow the provider’s instructions. Tell your attorney about any notice from the court or DMV. Do not tamper with the device, ask someone else to provide a breath sample, or assume a disputed reading can be ignored.

Questions to bring to your consultation

• Which court order and DMV action apply to me?
• Am I eligible for a restriction now, or is there a waiting period?
• Which vehicles must have a device?
• What are my start date, end date, and removal requirements?
• How do a refusal allegation, prior case, or another suspension affect eligibility?

For a first DUI in Glendale, Pasadena, Burbank, or Los Angeles, contact JackDUI to review the paperwork and available options. This guide provides general information; the applicable order and current law control your individual case.