California Vehicle Code 22108 requires you to signal continuously for the last 100 feet before you turn right or left. That’s the whole rule, and it’s the one most drivers get wrong by flicking the blinker on at the last second. Violating it is a one-point infraction that typically runs about $233 all in, and in most cases you can keep the point off your insurance record by completing traffic school.
What the 100-Foot Rule Requires
The statute itself is short: any signal of intention to turn right or left must be given continuously during the last 100 feet traveled by the vehicle before turning.1California Legislative Information. California Code Vehicle Code 22108 – Turning and Stopping and Turning Signals Two things matter in that sentence. The signal has to be on for a specific distance (100 feet), and it has to be on without interruption (continuously).
One hundred feet is roughly seven car lengths. In a parking lot or on a quiet residential street, that can feel like a long head start. On a freeway at 65 mph, your vehicle covers 100 feet in about one second, so the blinker needs to go on well before you begin slowing for an exit. The practical rule is to signal earlier than feels necessary, especially at higher speeds.
Notice what the statute doesn’t say. It doesn’t require the signal to stay on through the turn itself. The obligation runs for the 100 feet leading up to the turn; once the turn begins, the rule has either been met or broken. The statute also contains no exception for empty roads. The signal “shall be given continuously” before turning, regardless of whether anyone is around to see it.1California Legislative Information. California Code Vehicle Code 22108 – Turning and Stopping and Turning Signals In practice, officers are far more likely to cite you when your late signal forces another driver to brake or swerve.
Where Drivers Get Cited
The most common violation is signaling too late. A driver approaches an intersection, flips the blinker on, and immediately turns. Even though the signal technically came on, it wasn’t on for the full 100 feet before the turn started. Officers don’t measure exactly; they estimate based on observation, and a signal that goes on a car length or two before the turn is obviously short.
Freeway off-ramps are another frequent trigger. Waiting until you reach the gore point (the painted triangle where the ramp separates from the highway) to turn on your signal means you’ve already violated the statute, because the signal has to be running for the 100 feet before you begin to exit.
Dedicated turn lanes create similar trouble. Pulling into a left-turn pocket is a lateral movement that leads directly into a turn. Waiting until you’re already settled in the pocket to activate the signal leaves no warning for the turn itself.
What CVC 22108 Does Not Cover
The 100-foot rule applies to turns. Two related statutes cover situations drivers often assume fall under 22108.
Lane changes and other lateral movements on a roadway fall under CVC 22107. That statute prohibits moving right or left until the movement can be made safely and only after giving an appropriate signal when any other vehicle may be affected.2California Legislative Information. California Code Vehicle Code VEH 22107 A ticket for an unsignaled lane change usually cites 22107, not 22108.
Stopping or slowing suddenly is covered by CVC 22109, which requires an appropriate signal to the driver behind you when there’s an opportunity to give one.3California Legislative Information. California Code Vehicle Code 22109 Brake lights normally satisfy this, but a hand signal downward counts too.
Hand Signals Count, and the Same Rule Applies
Signal lamps are the default method in California. If your vehicle isn’t equipped with turn signals, or if the lamps stop working while you’re driving, you have to use hand-and-arm signals instead.4California Legislative Information. California Code Vehicle Code VEH 22110 This matters most for older vehicles, motorcycles, bicycles, and scooters.
CVC 22111 sets out the arm positions, all given from the left side of the vehicle: left arm straight out for a left turn, left arm up for a right turn (bicyclists may extend the right arm straight out instead), and left arm down for stopping or slowing.5California Legislative Information. California Code Vehicle Code VEH 22111 The 100-foot continuous requirement from CVC 22108 applies the same way. The arm has to stay out for that full distance before you begin the turn.
What a Ticket Costs
A CVC 22108 violation is a traffic infraction. The base fine is modest, usually $35 for a one-point moving violation, but California stacks penalty assessments, surcharges, and court fees on top. Under the current Uniform Bail and Penalty Schedule, the total runs about $233 for a first offense with no prior moving violations in the past 36 months.6California Courts. Uniform Bail and Penalty Schedules
The number climbs if you have recent priors. The base fine increases by $10 for each prior moving violation conviction within the preceding 36 months, and the assessments recalculate on the higher base.6California Courts. Uniform Bail and Penalty Schedules Counties may also add local assessments that shift the total.
Points and Insurance
A conviction adds one point to your DMV record. The point stays active for 39 months and counts toward California’s negligent operator thresholds during that window. One point on its own won’t put your license at risk, but combined with other recent violations it can push you toward suspension under the Negligent Operator Treatment System.7California DMV. Negligent Operator Actions
Insurance is usually the bigger hit. A single point is enough to trigger a rate increase at your next renewal, typically in the 10 to 30 percent range, and that increase often sticks around for three years or longer. Over time, the premium bump tends to cost more than the ticket itself.
Your Options After a Citation
Your Notice to Appear lists a court date and the choices available. There are three realistic paths.
Pay the Fine
Paying the bail is an admission of guilt. The conviction goes on your record, the DMV point is assessed, and your insurer will see it. It’s the simplest option and the most expensive one in the long run.
Traffic School
If you’re eligible, you can pay the fine plus a $52 state administrative fee and attend a traffic violator school. Online courses typically add another $20 to $50 in tuition. Successful completion keeps the conviction confidential on your driving record, which means the point isn’t reported to your insurer and doesn’t count against you for negligent operator purposes.8Superior Court of California. Traffic School Information for San Francisco County
Eligibility has two main requirements. The violation must be a one-point offense (CVC 22108 qualifies), and you must not have attended traffic school for a violation committed within the past 18 months, measured violation date to violation date.9California Courts. Rule 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School If you used traffic school recently, this door is closed.
Contest the Ticket
You can plead not guilty at arraignment and set the case for trial, where the citing officer must appear and testify.10Superior Court of California, County of Alameda. Contesting a Traffic Ticket California also allows a trial by written declaration, where you contest the ticket entirely in writing. You submit your statement and any evidence, the officer submits a written statement, and a judge rules on the paper record. You have to post the full bail with your declaration; if you win, the court refunds it. If you lose, you can request an in-person trial afterward.11California Courts | Self Help Guide. Trial by Written Declaration Many drivers start with the written declaration for that reason.