Previously, California’s Move Over requirements primarily protected emergency responders, tow trucks, and highway maintenance vehicles. Beginning January 1, 2026, the expanded law also covers ordinary motorists experiencing roadside emergencies.
This change matters because a disabled vehicle can create serious dangers, particularly when passing traffic moves at highway speeds.
However, violating the law does not automatically determine responsibility for an accident. Injury claims still require evidence of negligence, causation, and damages.
This guide explains California’s updated roadside safety requirements, how liability may arise, and what injured people should know before pursuing compensation.
California Move Over Law 2026: What Changed Under AB 390?
California’s Move Over Law requires motorists approaching certain stopped vehicles to create additional space whenever it is safe and practical.
Assembly Bill 390 expanded the categories of stationary vehicles receiving these protections. The change reflects growing concern about the risks faced by people dealing with breakdowns and other roadside emergencies.
According to the California Highway Patrol, the expanded requirement now includes stationary vehicles displaying flashing hazard lights or another qualifying warning device.
Which Stopped Vehicles Are Protected by the New Law?
The law continues protecting emergency vehicles, tow trucks, and highway maintenance vehicles that meet applicable conditions.
Importantly, the updated rule also extends protection to ordinary vehicles stopped along highways when they display qualifying hazard warnings.
For example, a passenger vehicle with a flat tire may qualify when its flashing hazard lights are activated.
Similarly, a vehicle experiencing mechanical problems may receive protection when the driver uses appropriate warning devices.
Nevertheless, the exact circumstances matter. The statutory requirements concern qualifying stationary vehicles and their location relative to the highway.
Flashing Hazard Lights and Warning Devices
Flashing hazard lights alert approaching drivers that another vehicle may be stopped or experiencing difficulty.
Other warning devices, including properly positioned safety cones or road flares, may also help communicate the presence of a roadside hazard.
Under AB 390, these warnings can trigger additional responsibilities for approaching drivers when the statutory conditions apply.
For instance, imagine a family whose vehicle breaks down on the freeway shoulder. The driver activates the hazard lights while waiting for roadside assistance.
Approaching motorists should recognize the warning and respond appropriately under the law.
However, motorists should never assume that activating hazard lights makes every stopping location safe.
Whenever possible, stranded drivers should move away from active traffic, contact roadside assistance, and follow official safety guidance.
When Drivers Must Move Over or Slow Down
When approaching a qualifying stationary vehicle, drivers must change into an available lane that is not immediately adjacent to the stopped vehicle if doing so is safe, practical, and lawful.
If a lane change cannot be completed safely, drivers must reduce speed to a reasonable and prudent level appropriate for existing conditions.
These conditions include traffic, weather, visibility, and roadway characteristics.
For example, a driver traveling beside a crowded freeway shoulder may be unable to change lanes because another vehicle occupies the adjacent lane.
In that situation, slowing to a safe speed may be the appropriate response.
Importantly, the law does not require drivers to make dangerous lane changes.
It also contains location-related limitations, including circumstances involving certain protective physical barriers.
Drivers should evaluate surrounding traffic rather than reacting suddenly or unpredictably.
Does Violating the Move Over Law Automatically Establish Fault?
Traffic violations can provide important evidence in personal injury investigations. However, a violation does not necessarily establish every element of a civil claim.
California negligence law generally requires proof that a defendant owed a duty of care, breached that duty, and caused compensable harm.
A driver’s failure to move over or slow down may support allegations of negligence when the statutory requirements apply.
Nevertheless, investigators must determine whether the conduct contributed to the collision.
Negligence, Causation, and Accident Evidence
Consider a driver who approaches a disabled vehicle displaying flashing hazard lights but fails to move over or reduce speed.
If the approaching driver strikes the vehicle or a person standing nearby, the violation may become important evidence.
However, liability also depends on factors such as visibility, road conditions, vehicle position, and the actions of other parties.
Useful evidence may include police reports, witness statements, traffic cameras, vehicle damage, and electronic driving records.
Dashcam footage can also help reconstruct the moments preceding a collision.
For more information, read our article about how AI dashcams are changing car accident claims in 2026.
Digital evidence can provide valuable context, but investigators should examine recording quality, timestamps, authenticity, and other limitations before drawing conclusions.
Therefore, no single video or traffic citation should automatically replace a complete investigation.
Comparative Negligence in Roadside Collisions
California generally follows a pure comparative negligence system. Under this approach, an injured person’s recoverable damages may be reduced according to their percentage of responsibility.
For example, a driver who stops unnecessarily in a dangerous location may contribute to a collision, depending on the circumstances.
Likewise, an approaching motorist who fails to obey the Move Over Law may share responsibility.
Suppose a court determines that an injured claimant sustained $100,000 in damages but was 20% responsible for the accident.
Under ordinary comparative negligence principles, the recoverable amount could be reduced to $80,000 before considering other legal issues.
This illustration does not predict an actual settlement.
When assessing shared fault, investigators may consider whether the stopped vehicle displayed warnings, whether safer stopping options existed, and whether approaching drivers responded reasonably.
Ultimately, California’s comparative negligence rules require a fact-specific evaluation.
How California Roadside Accident Victims Can Pursue Injury Claims
Roadside collisions can cause substantial injuries because stranded motorists and passengers may lack the protection of an enclosed vehicle.
Potential injuries include fractures, traumatic brain injuries, spinal injuries, soft tissue damage, and psychological trauma.
However, the severity of injuries varies. A qualified healthcare professional should assess symptoms and recommend appropriate treatment.
Evidence, Insurance Coverage, and Compensation After a Crash
People injured in roadside collisions should prioritize medical care and personal safety.
When it is safe, preserving evidence can also help establish what happened and whether another person’s negligence contributed to the accident.
Important records may include photographs, police reports, insurance details, medical documentation, and witness information.
Additionally, dashcam footage and electronic vehicle data may help clarify vehicle movements and the timing of events.
Our guide to digital evidence from wearables, dashcams, and phones explains how these records may support modern injury investigations.
What compensation may be available?
California roadside accident claims may involve economic and noneconomic damages.
Economic damages generally concern measurable financial losses, including:
- Emergency medical treatment and hospitalization.
- Physical therapy and rehabilitation expenses.
- Reasonably necessary future medical care.
- Lost wages and diminished earning capacity.
- Vehicle repair and other recoverable property damage.
Noneconomic damages may include physical pain, emotional distress, and loss of enjoyment of life when legally recoverable.
However, compensation depends on establishing liability, proving damages, and evaluating applicable legal restrictions.
Additionally, the responsible driver’s insurance policy limits may affect the funds available through that particular policy.
California’s current standard minimum automobile liability coverage is $30,000 per person, $60,000 per accident for bodily injury, and $15,000 for property damage.
These limits do not guarantee a settlement or establish the full value of a claim.
What if the other driver has limited insurance?
When injuries exceed the responsible driver’s available liability coverage, the injured person may need to investigate other recovery sources.
Depending on the circumstances, uninsured or underinsured motorist coverage may be relevant.
Commercial insurance or additional liable parties may also require consideration in certain cases.
For example, an accident involving a work vehicle may raise questions about the employer’s potential responsibility.
Nevertheless, additional coverage or employer liability should never be assumed without investigating the facts and applicable policies.
Steps to take after a roadside collision
First, call emergency services when someone is injured or immediate danger exists.
Second, seek medical attention and follow appropriate treatment recommendations.
Third, preserve available accident evidence. Photograph vehicle positions, roadway conditions, warning devices, and damage when it is safe to do so.
Fourth, identify witnesses and obtain relevant report information.
Fifth, keep medical bills, repair estimates, receipts, and correspondence organized.
Finally, review settlement documents carefully before signing a release that could affect future rights.
Importantly, people should not enter active traffic lanes merely to collect photographs or recover personal property.
Safety must take priority over evidence collection.
How long do victims have to file a claim?
California Code of Civil Procedure Section 335.1 generally provides a two-year limitations period for many personal injury lawsuits.
However, exceptions may apply. Claims involving government entities can require an administrative claim within a much shorter period, commonly six months.
Insurance negotiations also do not necessarily suspend filing deadlines.
Therefore, injured people should obtain reliable guidance about deadlines that apply to their specific circumstances.
Frequently asked questions
Does California’s Move Over Law protect ordinary drivers in 2026?
Yes. AB 390 expanded protection to qualifying stationary vehicles displaying flashing hazard lights or other warning devices.
Must drivers always change lanes?
No. Drivers should change lanes when safe, lawful, and practical. Otherwise, they must slow to a reasonable and prudent speed under applicable conditions.
Can a driver be liable without receiving a traffic ticket?
Yes. Civil negligence may be established through evidence even when no citation was issued.
Can a stranded driver share fault?
Potentially. Comparative negligence may apply when the stranded driver’s conduct contributed to the collision.
Where can drivers review the official law?
Visit the California Highway Patrol’s 2026 public safety law announcement for official information about AB 390.
Final thoughts
The California Move Over Law 2026 expands protections for people facing roadside emergencies.
By requiring approaching motorists to move over when safe or slow down appropriately, the law aims to reduce dangerous encounters between moving traffic and stationary vehicles.
However, accident liability still depends on negligence, causation, and evidence.
Understanding the law, taking safety precautions, preserving accident records, and reviewing insurance coverage can help injured people make more informed decisions.
When serious injuries or disputed liability complicate a claim, advice from a qualified California attorney may help clarify available options.
Disclaimer: This article provides general educational information about California law as of October 2026. It is not individualized legal advice.
