California Vehicle Code 22350 (CVC 22350) is the state’s basic speed law: no one may drive faster than is reasonable or prudent given the weather, visibility, traffic, and roadway — and never at a speed that endangers people or property. The defining feature of CVC 22350 is that a driver can violate it while driving at or below the posted limit; the posted number is a ceiling, not a safe harbor. A ticket runs roughly $238 to over $490 with assessments and adds one DMV point, but in an injury case the violation supports negligence per se against the speeding driver — including the driver who was “only doing the limit” in rain, fog, or heavy traffic. Victims injured by drivers going too fast for conditions in Los Angeles or anywhere in California may recover compensation for medical bills, lost wages, pain and suffering, and other damages. Attorney Steven M. Sweat has represented injured Californians for over 30 years and offers free consultations at 866-966-5240.

Ask most drivers whether they were speeding and they will answer with a number: “The limit was 65 and I was doing 63.” California law does not work that way. The state’s foundational speed statute contains no number at all — and after a crash, it is very often the statute that decides fault, especially in the rain-slicked, fog-bound, stop-and-go conditions where Southern California collisions cluster.

This article — the third in our series on the Vehicle Code sections that decide accident fault — explains what CVC 22350 requires, why “I was under the limit” is not a defense, what a basic speed law ticket costs, and how the statute is used to prove (and defend) fault in California injury claims.

What CVC 22350 Actually Says

California Vehicle Code section 22350 provides: “No person shall drive a vehicle upon a highway at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of, the highway, and in no event at a speed which endangers the safety of persons or property.”

Two commands live in that sentence. First, speed must be reasonable or prudent for four listed conditions — weather, visibility, traffic, and the roadway itself. Second, and independently, speed may never endanger the safety of persons or property. A driver can fail either test, and neither test mentions the number on the sign.

Yes — You Can Violate CVC 22350 While Under the Posted Limit

This is the point most drivers — and many crash victims — do not know. California’s posted limits below the state maximums are prima facie limits: they define the presumptively safe speed in normal conditions. When conditions are not normal, CVC 22350 overrides the sign. Sixty-five on the 5 in a downpour, forty on PCH in dense fog, or the posted limit through a debris field or an active crash scene can each be a violation, because the legally required speed is the one that is safe now.

The conditions that lower the legal speed below the posted number include:

• Weather and road surface. Rain — especially the first rain after a dry spell, when oil residue makes Southern California freeways notoriously slick — fog, and standing water all extend stopping distances and tighten the standard.
• Visibility. Fog, dust, smoke from nearby fires, nighttime on unlit roads, and sun glare at dawn and dusk on east–west corridors.
• Traffic density. Stop-and-go congestion demands speeds that allow for constant, unpredictable braking ahead — the everyday reality of Los Angeles freeways.
• Roadway configuration. Sharp curves, narrow lanes, construction zones, school zones with children present, and the presence of pedestrians and cyclists.

What a CVC 22350 Ticket Costs

A basic speed law violation is an infraction. The base fine scales with how far the speed exceeded the safe speed — $35 for 1–15 mph over, $70 for 16–25 mph over, $100 for 26 mph or more — but penalty assessments multiply those figures, so real-world totals run from roughly $238 to over $490 plus court costs. A conviction adds one point to the DMV record for 36 months, insurers commonly raise premiums substantially on a single point, and eligible drivers can attend traffic school once every 18 months to mask the point. Accumulating 4 points in 12 months, 6 in 24, or 8 in 36 triggers negligent-operator license suspension.

And as throughout this series: the ticket is the small consequence. The same violation, attached to a crash, becomes the foundation of civil liability.

How CVC 22350 Decides Fault in an Injury Case

Violation of a safety statute like CVC 22350 supports negligence per se — a presumption of negligence when the violation causes the type of harm the statute exists to prevent. The basic speed law exists to prevent exactly one thing: collisions caused by speed unsafe for conditions. A driver going too fast for the rain who hydroplanes into another vehicle, or who cannot stop for slowed traffic, fits the doctrine squarely — even if their speedometer never crossed the posted limit.

California’s pure comparative fault system, established in Li v. Yellow Cab Co. (1975) 13 Cal.3d 804, apportions fault by percentage among everyone involved, and an injured person can recover even if partially at fault, with damages reduced proportionally — the full framework is in our guide to California comparative fault law. In practice, CVC 22350 appears in fault fights from both directions:

• As the sword. The defense mantra in rear-end and multi-car cases is that the lead driver “stopped suddenly.” CVC 22350 answers it: a driver traveling at a lawful speed for conditions has the ability to stop for traffic ahead. Speed unsafe for conditions also compounds a following-too-closely violation — the tailgating statute we cover in our CVC 21703 guide expressly incorporates “due regard for the speed of such vehicle.” The two statutes are routinely cited together on collision reports.
• As the shield. Adjusters argue crash victims were “speeding” to manufacture comparative fault. The prima facie structure cuts both ways: modest speed over a posted limit, in light traffic and clear conditions, is not automatically negligence — the question is always reasonableness for conditions, and the burden of proving unsafe speed falls on the party claiming it.
• In severity disputes. Speed is the single largest determinant of crash forces and injury severity — particularly for pedestrians, where survivability drops steeply as impact speed rises. Establishing the defendant’s true speed through reconstruction frequently moves a case’s value tier, as we detail in our analyses of pedestrian accident settlement values and rear-end collision settlement values.

For commercial vehicles, the standard bites harder still: an 80,000-pound tractor-trailer’s stopping distance makes “reasonable and prudent” substantially slower than the flow of car traffic in poor conditions, and speed-for-conditions violations are a recurring liability theory in the cases covered in our California truck accident settlement guide.

Proving Speed Unsafe for Conditions

• Event data recorder (EDR) downloads. Most modern vehicles record pre-impact speed, throttle, and braking — the objective answer to “how fast were they really going.”
• Dash cam and surveillance footage. Video establishes both speed (via frame-by-frame analysis against fixed objects) and the conditions that define what speed was lawful.
• Weather and road-condition records. Historical weather data, Caltrans records, and photographs anchor the conditions element — the half of a CVC 22350 case that the speedometer cannot answer.
• Crush analysis and reconstruction. Damage depth, skid marks (or their absence, on wet pavement or with ABS), and debris fields let reconstructionists calculate impact speed within tight ranges.
• The traffic collision report. A CVC 22350 notation by the responding officer — common in weather-related crashes — documents circumstances consistent with unsafe speed and carries substantial weight with adjusters.

And the standing rule of this series: watch what you say. “I was going the speed limit” is not the defense drivers think it is — and for victims, speculating about your own speed to the other side’s adjuster invites a manufactured comparative fault argument. Review what not to say to an insurance adjuster after a California car accident before giving any statement.

Frequently Asked Questions About CVC 22350

What is CVC 22350?

CVC 22350 is California’s basic speed law. It prohibits driving faster than is reasonable or prudent given the weather, visibility, traffic, and roadway conditions — and prohibits any speed that endangers the safety of persons or property. It applies on every California roadway, independent of the posted limit.

Can I get a CVC 22350 ticket for driving under the speed limit?

Yes. Posted limits below the state maximums are prima facie limits — presumptively safe in normal conditions. When conditions are worse than normal, the legally required speed drops below the posted number, and driving the posted limit in heavy rain, fog, or dense traffic can violate CVC 22350.

What is the fine for a CVC 22350 ticket?

The base fine is $35 for 1–15 mph over the safe speed, $70 for 16–25 mph over, and $100 for 26 mph or more — but penalty assessments raise real-world totals to roughly $238 to over $490 plus court costs. A conviction adds one DMV point for 36 months; eligible drivers can attend traffic school once every 18 months to mask the point from insurers.

What is the difference between the basic speed law and the posted speed limit?

The posted limit is a fixed ceiling; the basic speed law is a floating standard. Exceeding an absolute maximum (such as 65 mph on most freeways) is automatically a violation. Below those maximums, CVC 22350 governs: the lawful speed is whatever is reasonable and prudent for the conditions at that moment, which can be well below the number on the sign.

How does a CVC 22350 violation affect fault in an accident?

Violation of the basic speed law supports negligence per se — a presumption that the speeding driver was negligent — because the statute exists precisely to prevent speed-related collisions. Under California’s pure comparative fault system, that violation is weighed with all other evidence, and fault is apportioned by percentage among the drivers involved.

The other driver says they weren’t speeding because they were under the limit. Does that defeat my claim?

No. “Under the limit” answers the wrong question. If conditions — rain, fog, congestion, a visible hazard — required a slower speed, the driver violated CVC 22350 regardless of the posted number. Event data recorder downloads, video, weather records, and reconstruction establish both the actual speed and what speed the conditions permitted.

How long do I have to file a lawsuit after a speed-related accident?

Generally two years from the date of the accident for injury claims under California Code of Civil Procedure § 335.1, and three years for property damage only. Claims against government entities require an administrative claim within six months under Government Code § 911.2. Speed evidence — EDR data and camera footage especially — disappears far faster than any legal deadline, so act quickly regardless.

Injured by a Driver Going Too Fast for Conditions? Talk to Us Free

For over 30 years, Steven M. Sweat, Personal Injury Lawyers, APC has represented Californians injured by unsafe drivers — and we know how to prove that a “legal” speed was an unlawful one, from EDR downloads to weather records to full accident reconstruction. Consultations are free and confidential, we handle every case on a contingency fee with nothing owed unless we win, and services are available in English and Spanish. Call 866-966-5240, 24 hours a day, 7 days a week.