Work-Restricted License vs. IID Restriction After a DUI: Which Should You Choose?

After a DUI conviction in California, most people face a choice they were not prepared for: accept a restricted license that limits where you can drive, or install an ignition interlock device and drive anywhere you want. It sounds simple. It is not. The decision affects how long your total suspension lasts, what you can and cannot do behind the wheel, and how much the whole process costs. This is one of the most commonly misunderstood topics for people going through a DUI, so here is a plain-language breakdown of how it actually works.

One point to clear up before anything else, because it trips up almost everyone. Both options are restricted licenses. The DMV issues them under different rules, but neither one gives you your full driving privilege back. The real difference is what gets restricted. The work and program restriction limits where and why you may drive. The IID restriction limits what vehicle you may drive. When the DMV refers to an IID-restricted driver license, that is exactly what it means. So the question is not whether you will drive on a restriction. It is which restriction fits your life better.

Two Suspensions, Not One

Before getting into the choice itself, it helps to understand that a California DUI produces two separate license suspensions running on parallel tracks.

The first is the DMV’s Administrative Per Se suspension, which kicks in automatically after your arrest regardless of what happens in criminal court. For a first offense where you submitted to a chemical test, this is a four-month suspension. The second is the court-triggered suspension that follows a conviction, which is typically six months for a first offense.

Both suspensions carry their own requirements for getting your license back. Both can be addressed with restricted driving options. And critically, the choices you make on one side affect how the other side plays out.

The Work and Program Restriction: What It Is and What It Costs You

The traditional restricted license, sometimes called the work/program restriction, allows you to drive only to and from work, during work if your job requires it, and to and from your court-ordered DUI program. That is it. Anywhere else is off limits.

To get this restriction after a first offense, you must first sit through a 30-day hard suspension during which you cannot drive at all, for any reason. After those 30 days, you can apply for the restricted license. From that point, the restriction lasts for five months, bringing the total APS suspension period to five months plus the initial 30 days.

The restricted license requires you to file an SR-22 certificate of insurance with the DMV, enroll in your DUI program, and pay a reissue fee. It does not require an IID.

The catch that most people do not anticipate is the driving limitation itself. To and from work sounds manageable until you realize it means grocery runs, picking up your kids, going to a doctor appointment, or stopping anywhere on the way home is technically a violation. Living under that restriction for months is genuinely difficult for most people, and violating it carries serious consequences including a new criminal charge for driving on a suspended license.

The IID Restriction: What It Is and What It Costs You

The IID restriction is the alternative. Instead of limiting where you can drive, it limits what you drive. Any vehicle you operate must be equipped with a functioning ignition interlock device, which requires a clean breath sample before the engine starts and periodic rolling retests while the car is in motion.

The major advantage is that you can drive anywhere, at any time, as long as you are in an IID-equipped vehicle. There are no geographic or purpose restrictions. You can go to the grocery store, drive your kids to school, visit family, or run errands. For most people with normal lives and normal responsibilities, this is meaningfully better than the work-only restriction.

The other significant advantage is timing. For first-time offenders who did not refuse the chemical test, choosing the IID restriction allows you to bypass the 30-day hard suspension entirely in many cases. You can apply for the IID-restricted license as soon as the IID is installed, the SR-22 is filed, and you are enrolled in your DUI program. That means you may lose little or no driving time at all while your APS suspension is pending.

The cost is real, though. IID installation typically runs between $70 and $150 depending on the vendor, and monthly monitoring fees average $60 to $100. Over a four to six month period, you are looking at several hundred dollars in IID costs on top of everything else.

How the Two Suspensions Interact

Here is where people get genuinely confused, and where the stakes of the choice become clearer.

If you win your DMV hearing and the APS suspension is set aside, you may still face a court-triggered suspension when you are convicted. If you lose the DMV hearing or do not request one, the APS suspension runs its course. Ideally the two suspensions overlap as much as possible rather than running back to back, and the way your case is sequenced is what determines whether that happens. This is worth raising with your attorney early, because once the dates are set there is very little room to improve them.

When the court orders an IID as part of your conviction, any time you have already spent driving on an IID-restricted license under the APS suspension may count toward your court-ordered IID period, depending on timing. This credit does not happen automatically. It requires coordination between your attorney and the DMV, and it requires the IID to have been installed before the court conviction.

The post-conviction side is also where the two restrictions stop looking similar. For a first offense involving alcohol and no injury, the IID restriction generally runs six months, while the work and program restriction runs a full year. That is the comparison most people never see, and it matters more than the month-to-month cost of the device. Six months of driving anywhere in an equipped vehicle against twelve months of driving only to work and to your DUI program is not a close call for most people with jobs and families.

What the Court May Order Regardless

One thing that catches people off guard: the court can order an IID independently of what you chose on the DMV side. If the judge orders an IID as a condition of probation, you are getting one whether you wanted it or not. In that case, having already installed one voluntarily under the APS restriction not only kept you driving during the suspension period but also gives you a head start on the court’s requirement.

For repeat offenders, the IID is generally mandatory rather than optional. A second DUI within ten years requires an IID for at least one year. A third offense requires two years. In those situations the choice between the two restrictions largely disappears.

Drug-Only DUIs Are Treated Differently

If your DUI involved drugs only and no alcohol, the rules change, but not in the way most people assume. The IID is an alcohol-specific device, so a conviction for driving under the influence of drugs under Vehicle Code § 23152(f) does not carry an IID requirement. You will not be ordered to install one.

That is not the same as saying an IID restriction is unavailable to you. The DMV treats the IID as optional rather than mandatory in the drug-only context, and there are circumstances in which you may still apply for an IID-restricted license, including repeat offenders who have already served at least a year of a suspension or revocation. Eligibility here turns on your specific offense and your prior history, so confirm it with the DMV or your attorney rather than assuming the work and program restriction is your only way back behind the wheel.

If your case involved a combination of alcohol and drugs, the IID restriction is available.

The Practical Question: Which Is Right for You?

For most first-time offenders who submitted to a chemical test, the IID restriction is the better choice for one straightforward reason: it lets you drive everywhere immediately, without sitting through a 30-day hard suspension first. The cost of the device is real but manageable, and the freedom to drive without geographic restriction is worth it for most people with jobs, families, and normal daily responsibilities.

The work-only restriction makes more sense in limited situations:

• Your job genuinely requires you to drive to only one location and back, making the restriction easy to comply with
• You have someone else who can handle personal driving needs during the restriction period
• You are strongly opposed to the cost and inconvenience of the IID for any reason

Whatever you decide, do not make this choice without talking to your attorney first. The timing of your DMV hearing, your conviction, and your IID installation all interact in ways that can either minimize or extend your total time with restricted driving privileges. Getting the sequencing right matters.