Injured on Muni or BART: How Your Claim Works
By Dorukhan Korkut Oguz

The bus lurched away from the stop before you had a hand on the rail, or the train braked hard and you went down in the aisle, or another rider attacked you while the operator kept driving. Being hurt on public transit feels like it should be simple, because you were just a passenger. Legally it is two things at once: a strong duty owed to you, and a government deadline that is far shorter than most people expect.
This post covers both, using Muni, BART, and AC Transit as the examples most Bay Area riders deal with.
Transit agencies owe passengers the highest duty of care
Most injury claims turn on ordinary care, meaning what a reasonable person would have done. Passengers get more than that.
Civil Code § 2168 says that everyone who offers to the public to carry persons is a common carrier. Civil Code § 2100 then sets the standard: "A carrier of persons for reward must use the utmost care and diligence for their safe carriage, must provide everything necessary for that purpose, and must exercise to that end a reasonable degree of skill."
The California Supreme Court confirmed in Lopez v. Southern Cal. Rapid Transit Dist. (1985) that this duty applies to public carriers as well as private ones. A city bus system or a rail district does not get a lighter standard because it is run by the government. In the court's words, the duty requires carriers "to do all that human care, vigilance, and foresight reasonably can do under the circumstances."
That matters in practice. A driver who pulls away while an elderly passenger is still finding a seat, or a train operator who brakes harder than the conditions called for, is measured against a demanding standard, not a forgiving one.
Utmost care is not a guarantee
The same opinion draws the limit. "Common carriers are not, however, insurers of their passengers' safety." The care required is only what "can reasonably be exercised consistent with the character and mode of conveyance adopted."
So a bus that has to stop short because a car cut in front of it is not automatically liable for everyone who stumbled. Buses and trains move, and some jolts are part of riding them. The question is whether the operator, the agency, or its equipment fell short of what a very careful carrier would have done. Expect the agency to argue that whatever happened was the normal motion of the vehicle, and expect your claim to depend on the specifics: how fast, how sudden, what the operator could see, and whether the vehicle had finished stopping.
When another passenger hurts you
Lopez itself was about a fight between passengers. The court held that a public transit district does owe its passengers a duty to protect them from assaults by fellow passengers.
The duty has conditions. The carrier is liable only where, exercising the required degree of care, it "has or should have knowledge from which it may reasonably be apprehended that an assault on a passenger may occur, and has the ability in the exercise of that degree of care to prevent the injury." The court did not require armed guards on every bus. Ordinary steps such as warning an unruly passenger, calling police, or ejecting someone may be enough.
The useful evidence is therefore about what the operator knew and when. Did the confrontation build for several stops? Did you or anyone else alert the driver or press an intercom? Did the operator keep driving? Write down your memory of the timeline while it is fresh, because it is the heart of this kind of claim.
The six-month deadline is the part people miss
Muni is run by the San Francisco Municipal Transportation Agency, part of the City and County of San Francisco. BART is the San Francisco Bay Area Rapid Transit District. AC Transit is its own transit district. All three are public entities, and that changes the timeline completely.
Before you can sue a public entity in California, you generally must present a written government claim within six months of the injury. The two-year statute of limitations that applies to a private driver does not save you if you skip this step. We walk through the full process in our post on the six-month government claim deadline. The transit-specific points:
- San Francisco and Muni. The City says claims for personal injury must be filed within six months of the incident, through the Controller's Office Claims Division. It accepts forms by mail or hand delivery only and does not accept emailed or faxed claims. It asks you to allow up to 45 days for processing and investigation.
- AC Transit. Its claims page says a claim relating to injury should be filed within six months of the occurrence, delivered or mailed to the District Secretary with a signed original. It states that claims sent by fax or email will not be accepted, and that you have six months from the date of a denial to file a lawsuit.
- BART. As a separate district, BART takes its own claims. Confirm the current form and filing address directly with the District before you send anything, and do not assume a claim filed with a city covers BART.
Note the pattern: original signatures, paper delivery, no email. A claim that never properly arrives is the same as no claim.
Figure out which agency, and which property, hurt you
A Bay Area trip can cross several agencies in an hour. A slip on a station stair, a fall from a broken escalator, and a fall on a moving bus can each belong to a different entity, and a fall on station property may be framed as a dangerous condition of public property rather than a carrier case.
If you are not sure who operated the vehicle or owned the station, present a claim to every agency that could plausibly be responsible, inside the six months. Sorting out who actually controlled it can wait. The deadline cannot.
Evidence to save this week
Transit agencies have cameras, operator logs, and incident reports. You will not see them unless you know what to ask for and ask quickly.
- Your trip details. Line or route number, direction, vehicle or car number if you saw it, the stop or station, and the time.
- Report it before you leave, if you can. Tell the operator or station agent you were hurt and ask that an incident report be made. Keep it to what happened, not a guess about your injuries.
- Witnesses. Fellow riders scatter at the next stop. Get names and phone numbers.
- Photos. The step, the floor, the handrail, the spill, your injuries.
- Medical care. Get evaluated promptly and keep your follow-up appointments.
If an agency claims adjuster calls you, the usual cautions apply. Be as careful with them as with any insurer, particularly about a recorded statement.
What this means in California
Several rules work together in a transit injury case.
- Utmost care. Civil Code § 2100 holds carriers, public and private, to the highest standard, though not to a guarantee of safety.
- Six months to present a government claim against a public entity, usually starting the day you were hurt.
- Two years under CCP § 335.1 for claims against private parties involved in the same incident, such as a driver who cut off the bus.
- Pure comparative negligence. If the agency says you should have been holding the rail, that argument can reduce your recovery by your share of fault. It does not bar the claim.
Practical next steps
Count six months forward from the date you were hurt and put that date on your calendar. Write down the route, vehicle, and time. Ask the agency for its claim form, and send it the way the agency requires, keeping a copy and proof of delivery. Keep treating and keep your records. If you are unsure which agency to name or how to describe what happened, a free consultation costs nothing and there is no fee unless there is a recovery.
