California Vehicle Code Section 21801 requires any driver making a left turn or U-turn to yield to oncoming vehicles that are close enough to pose a hazard, and to keep yielding until the turn can be completed safely. A ticket under CVC 21801 runs about $233 after state assessments and adds one point to your DMV record. If the violation causes a collision, it also hands the other driver a near-automatic head start on proving you were negligent in a civil lawsuit.1California Legislative Information. California Code VEH 21801 – Left and U-Turn Right of Way
What the Statute Requires
The rule applies any time you turn left or U-turn: at an intersection, into a driveway or parking lot, or into an alley. You have to wait until no oncoming vehicle is close enough to create a hazard, and you have to keep yielding throughout the turn, not just at the moment you start it. Edging out in the hope that approaching traffic will slow for you doesn’t satisfy the statute.1California Legislative Information. California Code VEH 21801 – Left and U-Turn Right of Way
The duty covers every oncoming lane, not just the one nearest you. If a vehicle in any opposing lane is close enough that your turn would force it to brake, swerve, or change speed, you have not yielded. The law puts the full burden of judging the gap on the turning driver. Misjudging an oncoming car’s speed or distance is still your mistake, even if the gap looked workable.
What Counts as a Hazard
Section 21801 uses the phrase “close enough to constitute a hazard” and leaves the specifics open. The practical test is whether a reasonably careful driver in the same situation would have attempted the turn. If completing your turn would force an oncoming driver to brake hard or change lanes, a hazard exists. Officers and courts look at the approaching vehicle’s speed, the gap between vehicles, weather, visibility, and road conditions.1California Legislative Information. California Code VEH 21801 – Left and U-Turn Right of Way
The Signal Condition Most Drivers Miss
Section 21801(b) shifts the right of way to the turning driver once the turn is underway, but only if two conditions were met: you yielded properly, and you signaled “when and as required by this code.” Vehicle Code 22107 requires an appropriate signal whenever another vehicle could be affected by your turn.2California Legislative Information. California Code VEH 22107 Vehicle Code 22108 adds timing: the signal must be on continuously for at least the last 100 feet before the turn.3California Legislative Information. California Vehicle Code 22108
Flipping the signal on as you turn doesn’t count. A driver who turns left without signaling, or who signals too late, loses the protection of 21801(b) entirely. Oncoming traffic never acquires a duty to yield, and the turning driver bears the full weight of any resulting collision.
When Oncoming Drivers Have to Yield to You
Once you’ve properly yielded and given the required signal, the law flips. Oncoming drivers must yield to your vehicle so you can finish the turn. The statute is written this way to keep a driver who did everything correctly from being stranded mid-intersection.1California Legislative Information. California Code VEH 21801 – Left and U-Turn Right of Way
This is where disputed left-turn crashes usually come down. The turning driver says the gap was safe and the turn was committed. The oncoming driver says the turning vehicle pulled out in front of them. The answer turns on whether both conditions were actually met: a safe gap when the turn began, and a continuous signal for the last 100 feet before it. Miss either one and the right-of-way transfer never happened.
Fine, Points, and Traffic School
A violation of 21801 is an infraction. The base fine is small, but California’s penalty assessments stack surcharges and fees on top. Under the state’s Uniform Bail and Penalty Schedules, a right-of-way infraction with a $35 base fine totals roughly $233 once mandatory state and county assessments are added.4California Courts. Uniform Bail and Penalty Schedules Some courts add local fees that push the total higher.
A conviction also puts one point on your DMV record under Vehicle Code 12810.5California Legislative Information. California Vehicle Code 12810 One point sounds minor, but the DMV classifies you as a negligent operator at 4 points in 12 months, 6 in 24, or 8 in 36. Hitting any of those thresholds triggers a year of probation and a six-month license suspension.6California DMV. Negligent Operator Actions
Traffic School Keeps the Point Off
For most drivers cited under 21801, traffic school is the right move. Because the violation is a one-point infraction, you’re generally eligible as long as you hold a valid license and haven’t attended traffic school for another violation in the previous 18 months. Completing the course makes the conviction confidential on your DMV record, which keeps insurers from seeing it.7California Courts. Rule 4.104 – Procedures and Eligibility Criteria for Attending Traffic Violator School You still pay the fine and the course fee, but avoiding a premium increase for three to five years usually makes it the cheaper outcome by a wide margin.
Civil Fallout: Negligence Per Se
If a 21801 violation causes a crash, the injured party gets a shortcut in any lawsuit that follows. California Evidence Code 669 creates a presumption of negligence when someone violates a statute and the violation causes the type of harm the statute was designed to prevent.8California Legislative Information. California Evidence Code 669 Since 21801 exists to prevent left-turn and U-turn collisions, a driver who violated it and caused that exact kind of crash enters court with the duty and breach of care essentially established.
The presumption can be rebutted, but it is a steep climb. The turning driver has to show they acted as a reasonably prudent person would have under the circumstances and still couldn’t comply, such as when a signal light malfunctioned or an emergency vehicle forced a sudden lane change. The injured party still has to prove causation and damages, but the fight over whether the turning driver was negligent is largely over before it starts.9Justia. CACI No. 418 – Presumption of Negligence Per Se
Shared Fault When Both Drivers Did Something Wrong
The turning driver isn’t always 100% at fault. California uses pure comparative negligence under Li v. Yellow Cab Co., which assigns fault in proportion to each party’s negligence and reduces a plaintiff’s recovery accordingly rather than barring it.10Justia. Li v. Yellow Cab Co.
Imagine you turned left and were struck by an oncoming driver going 20 mph over the limit. You violated 21801, but their speed shortened the gap you reasonably judged. A jury might assign you 60% of the fault and the other driver 40%. On $100,000 in damages, you’d recover $40,000. The oncoming driver violations that commonly bring shared fault into the picture include speeding, distracted driving, running a red light, and driving under the influence.
It works the other direction too. If you were the oncoming driver hit by a turning vehicle but were texting at the moment of impact, your recovery can be reduced for the share your inattention played. This is why police reports and witness accounts carry so much weight in left-turn crashes. The statute puts the turning driver on the back foot from the start, but that presumption isn’t bulletproof when the other driver was also breaking the law.
U-Turn Location Rules That Sit Alongside 21801
Section 21801 governs the yielding duty during a U-turn, but it doesn’t tell you where U-turns are allowed. Vehicle Code 22100.5 prohibits U-turns at intersections controlled by traffic signals except from the far left lane lawfully available to your direction of travel.11California Legislative Information. California Vehicle Code 22100.5 Other sections ban U-turns in front of fire stations, on divided highways except through designated openings, and in residential districts when another vehicle is within 200 feet. A posted no-U-turn sign makes the turn illegal regardless of traffic. A driver who U-turns where it’s prohibited can be cited for the location violation on top of a 21801 citation for failing to yield.