A California unsafe lane change ticket under Vehicle Code 22107 costs about $230 in total fines, adds one point to your driving record for three years, and typically raises your insurance premium for the next several years.1Judicial Council of California. Uniform Bail and Penalty Schedules 2026 Edition2California Legislative Information. California Code Vehicle Code VEH 12810 If you qualify for traffic school, you can keep the point off your public record and away from your insurer. If the lane change caused a crash or was aggressive enough to look reckless, the consequences get much heavier.
What Counts as an Unsafe Lane Change
Vehicle Code 22107 packs two rules into one sentence. You cannot move right or left on a roadway unless the movement “can be made with reasonable safety,” and you must signal whenever another vehicle might be affected.3California Legislative Information. California Code Vehicle Code VEH 22107 – Turning and Stopping and Turning Signals Both parts stand on their own. Signaling doesn’t rescue a dangerous merge, and a safe merge without a signal can still draw a citation if another driver was close by.
Officers and judges look at the whole picture: traffic speed, spacing between vehicles, whether you checked mirrors and blind spots, and whether anyone had to brake or swerve. Dashcam footage, witness accounts, and physical evidence like skid marks all get weighed. A close call that forces another driver to react is usually enough to justify the ticket, even when no collision happens.
The signal itself has its own requirement. Vehicle Code 22108 says a turn signal must run continuously for the last 100 feet before the movement, and VC 22107 pulls that rule into lane changes.4California Legislative Information. California Code Vehicle Code VEH 22108 – Turning and Stopping and Turning Signals At freeway speeds, that’s roughly one second. A quick flick as you’re already crossing the line doesn’t satisfy the statute.
What the Ticket Costs
The base fine is $35. Nobody pays just $35. California layers on state and county penalty assessments, surcharges, and court fees that multiply the base several times over. Under the 2026 Uniform Bail and Penalty Schedule, the statewide default total for a standard traffic infraction with a $35 base fine is $233.1Judicial Council of California. Uniform Bail and Penalty Schedules 2026 Edition Some counties tack on local fees, so the real total lands somewhere between roughly $230 and $250 depending on where you were cited.
Ignoring the ticket makes it worse. The court can add a civil assessment of up to $300, hold your license, and report a failure to appear to the DMV, which generates its own separate charge.
The Point on Your Record
A conviction adds one point under Vehicle Code 12810, which assigns a single point to most safe-operation violations not otherwise called out at a higher level.2California Legislative Information. California Code Vehicle Code VEH 12810 The point sits on your record for three years.
Points feed the DMV’s Negligent Operator Treatment System. Reach four points in 12 months, six in 24, or eight in 36, and the DMV presumes you’re a negligent operator and can suspend your license. One unsafe lane change ticket won’t get you there alone. Combined with other violations or at-fault crashes, points stack up faster than most drivers expect. A suspension for negligent operation can also require an SR-22 filing for three years before full reinstatement.5California Legislative Information. California Code Vehicle Code VEH 12810.5
Traffic School to Keep the Point Off
An eight-hour traffic violator school makes the conviction confidential, which keeps the point from counting against you for insurance and negligent-operator purposes. California Rule of Court 4.104 lets a court clerk grant traffic school for any eligible one-point infraction, provided you meet several conditions:6Judicial Council of California. Rule 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School
- You haven’t attended or elected traffic school for another violation in the previous 18 months.
- You hold a valid California driver’s license.
- Any failure-to-appear charge on the ticket is resolved and the fine is paid.
- You weren’t driving a commercial vehicle when cited.
You still pay the full fine plus a separate administrative fee. The trade is that the point stays off your public record and away from your insurer’s view. For most drivers, the eight hours pay for themselves several times over in avoided premium hikes.
Fighting the Ticket
Two routes exist: an in-person hearing or a trial by written declaration.
Trial by Written Declaration
Vehicle Code 40902 lets you contest a traffic infraction entirely in writing.7California Legislative Information. California Code Vehicle Code VEH 40902 You submit a sworn declaration, the officer submits a written statement, and a judge decides on paper. You pay the full bail upfront and get it back if you win.
The catch that actually favors you: if you lose the written declaration, you’re entitled to a fresh in-person trial as if the written one never happened.7California Legislative Information. California Code Vehicle Code VEH 40902 That’s two shots at dismissal. Many officers also miss the deadline to submit their statement, which produces a dismissal by default.
In-Person Hearing
You request an arraignment, enter a not-guilty plea, and go to trial. The citing officer testifies about what they saw. You present your evidence. Dashcam footage is the strongest tool, and photos of the roadway, sight-line evidence, and witness testimony all help. A judge only needs a reasonable doubt about whether the movement was actually unsafe, and a clear piece of video can supply it.
When It’s Charged as Something Worse
A lane change that involves “willful or wanton disregard for the safety of persons or property” can be charged as reckless driving under Vehicle Code 23103 instead of an infraction.8California Legislative Information. California Code Vehicle Code VEH 23103 Reckless driving is a misdemeanor. The penalty jumps to five to 90 days in county jail, a fine between $145 and $1,000, or both, plus two points instead of one.2California Legislative Information. California Code Vehicle Code VEH 12810
Prosecutors reserve reckless charges for aggressive behavior: weaving through heavy traffic at speed, cutting across multiple lanes at once, or making a merge that directly causes a serious crash. An ordinary bad merge that startles someone usually stays an infraction.
If your lane change causes a collision, expect to be presumed at fault. The 22107 violation itself is strong evidence that you failed to move safely. California uses pure comparative negligence, so a jury can assign a percentage of blame to the other driver if they were speeding or distracted, and any damages you’re owed shrink by your share of fault.9Justia. CACI No. 405 – Comparative Fault of Plaintiff The lane-changing driver almost always carries the larger share.
If You Hold a CDL
Commercial license holders face a second layer. Federal regulations classify “improper or erratic traffic lane changes” as a serious traffic violation for anyone required to hold a CDL.10eCFR. 49 CFR 383.51 – Disqualification of Drivers The disqualifications:
- Two serious violations within three years: 60-day disqualification from operating a commercial vehicle.
- Three or more within three years: 120-day disqualification.
Disqualification applies when the violations happen in a commercial vehicle, and convictions in a personal vehicle can also trigger it if they cause your CDL to be suspended.10eCFR. 49 CFR 383.51 – Disqualification of Drivers Traffic school isn’t available for a violation committed in a commercial vehicle, so a CDL holder can’t hide the conviction the way an ordinary driver can.6Judicial Council of California. Rule 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School
What It Does to Your Insurance
Insurers treat a Vehicle Code 22107 conviction as a moving violation and a risk signal. Expect a premium increase of several hundred dollars a year. The exact hit depends on your insurer, your prior record, and whether a collision was involved. A clean-record driver absorbing a first offense sees a smaller bump than someone with an existing violation history.
Traffic school, if you qualify, is the most effective way to keep the conviction off your insurer’s radar. Because a completed course makes the conviction confidential, most insurers never see it. Where traffic school isn’t an option, some carriers offer modest discounts for a voluntary defensive driving course, but those savings are small compared to the surcharge from the violation itself.
Repeat moving violations in a short window can push you out of standard insurance markets and into a high-risk carrier at significantly higher rates. And if the points ever add up to a negligent-operator suspension, you’ll be filing an SR-22 for three years on top of everything else.