In California, you can use traffic school once every 18 months, and that window is measured from the date of the violation you previously used traffic school for to the date of your new violation. It is not measured from the day you finished the course or the day the court closed the case. If your new ticket falls outside that 18-month window, you’re eligible again. If it falls inside, the court clerk has to deny the request, though a judge still has limited discretion to allow it.1Judicial Branch of California. California Rules of Court 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School
How the 18-Month Clock Is Measured
Two dates matter, and neither one is the date you sat through the course. The clock starts on the date you committed the earlier violation (the one you used traffic school for) and stops on the date you committed the new violation. Everything in between, including how long the court took to process your first case and when you actually completed the class, is irrelevant to the count.2Superior Court of California, County of San Francisco. Traffic School – Eligibility for Traffic School
An example makes the arithmetic concrete. Suppose you were cited for speeding on January 15, 2025, and you attended traffic school in April 2025. If you’re cited again on June 20, 2026, you’re comparing January 15, 2025 to June 20, 2026. That’s roughly 17 months and a week, which is inside the 18-month window. Counting from your April course completion would have put you well past 18 months and given you the wrong answer.
This is the point most drivers get wrong. People assume the 18 months runs from the day they took the course, which can leave them thinking they’re eligible when they aren’t, or waiting longer than they need to.3Superior Court of California, County of Sutter. Traffic School
When You’re Eligible Again
Clearing the 18-month gap is the timing rule, but a clerk will also check the rest of the eligibility list before approving your request. You generally qualify if all of these are true:
- You hold a current California driver’s license.
- The ticket was for driving a noncommercial vehicle.
- The violation is an infraction under California’s rules of the road or equipment provisions (Divisions 11 and 12 of the Vehicle Code) and is reportable to the DMV.
- You have not used traffic school for a violation committed within the past 18 months.
Your courtesy notice from the court usually indicates whether the ticket is traffic-school eligible. If it doesn’t say, or you aren’t sure how the timing shakes out on your specific dates, call the court listed on the notice before you pay anything.4Judicial Branch of California. Traffic School
Offenses That Never Qualify
Some violations are off the table no matter how long it has been since your last course. California Vehicle Code Section 42005 bars traffic school for:
- Driving under the influence of alcohol or drugs, including underage DUI.
- Reckless driving, including wet reckless reductions.
- Hit-and-run, both the misdemeanor property-damage form and the felony injury or death form.
- Any ticket received while operating a commercial motor vehicle.
- Certain two-point offenses, such as driving on a suspended license and evading a peace officer, under Vehicle Code Section 12810(d) and (e).
Equipment-only violations, like a fix-it ticket for a broken taillight, generally aren’t reportable to the DMV, so traffic school doesn’t apply to them either.4Judicial Branch of California. Traffic School
Asking a Judge for an Exception
If your second ticket lands inside the 18-month window, the court clerk will deny the request. Clerks apply the checklist mechanically: meet every item and they approve, miss one and they deny. A judge has broader authority. Under Vehicle Code Section 42005 and California Rules of Court 4.104, a judicial officer can order traffic school in an individual case even when the clerk-level criteria aren’t satisfied.1Judicial Branch of California. California Rules of Court 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School
In practice, that means a driver whose second ticket falls just inside the 18-month cutoff can ask a judge to allow traffic school anyway. Each request is evaluated on its own facts. Judges weigh how close you are to the cutoff, the severity of the new violation, and your overall record. A driver with an otherwise clean history and a minor infraction has a stronger argument than someone with several recent tickets. You have to appear in court to make the request; it is not something you can handle by mail or online.
Judicial discretion has one hard limit. Judges cannot grant traffic school for the categorically excluded offenses listed above. DUI, hit-and-run, reckless driving, and the other statutory exclusions are off-limits regardless of how sympathetic the circumstances are.5California Legislative Information. California Code, Vehicle Code VEH 42005
Commercial License Holders
The 18-month rule applies differently if you hold a Class A, Class B, or commercial Class C license. For a ticket you received while driving a vehicle that only requires a standard Class C or Class M license, the court can allow traffic school, but the conviction will not be kept confidential. It stays on your record and is disclosed to insurers. The violation point, though, won’t count toward the negligent operator threshold.6California Legislative Information. California Code, Vehicle Code VEH 1808.10
If the ticket was written while you were actually operating a commercial vehicle, traffic school is not available at all, and no judge can override that. Federal regulations at 49 CFR 384.226 prohibit states from masking or diverting traffic convictions for CDL holders through any program that would keep the conviction off the Commercial Driver’s License Information System record.7eCFR. 49 CFR 384.226 – Prohibition on Masking Convictions
What to Do If You’re Close to the Line
If you think you might be near the 18-month cutoff, do the math on the violation dates before you pay any fee. Some courts do not refund the administrative fee if it turns out you weren’t eligible.2Superior Court of California, County of San Francisco. Traffic School – Eligibility for Traffic School Call the court on your courtesy notice, give them both violation dates, and confirm eligibility before you commit. If you’re inside the window and want to try for a judicial exception, ask the clerk how to request a court appearance for that purpose.