Car Accidents with Government Vehicles in California: The 6-Month Deadline You Cannot Miss

A crash with a city bus, CHP patrol car, LA Metro vehicle, sanitation truck, or any other government-owned vehicle is governed by an entirely separate body of law from an ordinary collision. The California Government Claims Act imposes a six-month administrative deadline that runs years shorter than the ordinary two-year statute of limitations — and missing it is fatal to the claim, no matter how clear the liability or how catastrophic the injuries.

California Government Code §§ 810–996.6 — the Government Claims Act (often still called the Tort Claims Act) — strips sovereign immunity in narrow, enumerated circumstances and replaces it with a strict pre-litigation procedure. Before any lawsuit can be filed against a public entity, the injured party must present a written administrative claim to the correct public entity, in the correct form, within the correct time period. Failure on any of these three fronts terminates the right to sue.

Government Code § 911.2 sets the central deadline: a claim for personal injury or wrongful death must be presented within six months of the date the cause of action accrued — almost always the date of the crash. Claims for property damage alone get one year. The six-month clock applies to claims against the State of California, every California county, every city, every special district (transit agencies, school districts, water districts, hospital districts), the California Highway Patrol, Caltrans, LA Metro, the MTA, SamTrans, AC Transit, and every other public agency in the state. The clock runs whether or not the injured person knows about the deadline.

The claim is not a lawsuit. It is a pre-litigation document presented to the entity's clerk or designated claims office, typically on the entity's own claim form, identifying the claimant, the date and place of the incident, the circumstances giving rise to the claim, the identity of the public employees involved (if known), a general description of the injuries, and either the amount claimed (if under $10,000) or a statement that the claim exceeds the limited jurisdiction threshold. The entity then has 45 days under Government Code § 912.4 to act — accept, reject in whole or part, or remain silent. Rejection (or 45 days of silence) starts a separate, much shorter statute of limitations: six months under Government Code § 945.6 to file the lawsuit, not the ordinary two years.

Identifying the correct entity is the most frequently fatal mistake. A crash with what looks like a 'city bus' may actually involve a regional transit district that is a separate public entity with its own claims process. A 'school bus' may be operated by the district itself, by a charter operator, or by a contracted private vendor. A police vehicle may belong to a city police department, a county sheriff, a state university police force, the CHP, or a federal agency (governed by the Federal Tort Claims Act, not state law). Filing a perfect timely claim against the wrong entity provides no protection against the right entity's six-month bar.

The late-claim relief safety valve

Government Code § 911.4 provides a narrow safety valve for claims presented after the six-month deadline. The claimant may apply to the public entity for leave to present a late claim, within one year of accrual, on grounds of mistake, inadvertence, surprise, or excusable neglect; minority of the claimant; physical or mental incapacity; or death of the claimant. If the entity denies the application, the claimant may petition the superior court under Government Code § 946.6 for relief from the claim-filing requirement. The standard is strict, and 'I did not know about the six-month deadline' is generally not excusable neglect. The reliable rule is to treat the six-month deadline as absolute.

Substantive liability against public entities

Even with a perfect claim, public entities are liable only on enumerated grounds. Government Code § 815.2 makes a public entity vicariously liable for the negligence of its employees acting within the scope of employment — the doctrine that reaches a CHP officer who rear-ends a civilian during routine patrol. Government Code § 835 establishes liability for a dangerous condition of public property where the entity had actual or constructive notice and failed to remedy it — the theory used for defective roadway design, missing signage, malfunctioning traffic signals, and unsafe Caltrans construction zones. Discretionary acts, emergency responses with lights and sirens (Vehicle Code § 17004 immunity for some officer conduct), and certain enforcement decisions remain immunized. The interaction of these statutes is the substantive battlefield once the procedural hurdles are cleared.

Damage caps and post-claim litigation

California does not cap most damages against public entities — full compensatory damages remain available, including economic damages, non-economic damages, and future care. Punitive damages, however, are barred against public entities under Government Code § 818. Public-entity defendants are also exempt from Proposition 213's bar on uninsured-motorist non-economic damages. Once the lawsuit is filed within the § 945.6 six-month post-rejection window, ordinary California civil procedure applies — with the added complication that public-entity defense counsel are typically aggressive, well-funded, and willing to litigate procedural defenses through summary judgment.

• Government Code § 911.2 — 6 months from the date of injury to present a written administrative claim for personal injury or wrongful death.
• Government Code § 911.2 — 1 year for property-damage-only claims.
• Government Code § 912.4 — entity has 45 days to act on the claim (acceptance, rejection, or silence).
• Government Code § 945.6 — 6 months after rejection (or 2 years after accrual if no written rejection) to file suit.
• Government Code § 911.4 — late-claim application available within 1 year on narrow grounds.
• Government Code § 818 — no punitive damages against public entities; ordinary compensatory damages are fully recoverable.

The 6-month clock starts on the day of the crash There is no grace period for ignorance of the deadline. Claimants who wait until they 'feel better' to think about the legal side routinely discover at the seven-month mark that the most clearly liable party in the case — the public entity whose driver caused the crash — is now permanently beyond reach.

Related Article: Car Accidents Involving Commercial Trucks and Semi-Trucks: Why These Cases Are Different Many government-vehicle cases involve municipal trucks subject to overlapping FMCSR standards. Read the full truck-case playbook at /articles/commercial-truck-car-accident-california.

Related Article: Head Injuries and Concussions from Car Accidents: Recognizing Symptoms and Protecting Your Claim Collisions with heavy municipal vehicles disproportionately produce head and brain injuries. Read the full head-injury guide at /articles/head-injury-concussion-car-accident.

Frequently Asked Questions

Q: How do I know if the vehicle that hit me was a government vehicle? A: Several physical and documentary cues identify a public-entity vehicle at the scene. Exempt 'E' license plates (white plate with red 'E' prefix) are issued under Vehicle Code § 5006 to state, county, city, and special-district vehicles and are an immediate giveaway. Agency seals or insignia on the doors — CHP star, city seal, school district crest, transit-agency logo — identify the entity. Light bars, push bumpers, antenna arrays, and dedicated emergency-vehicle equipment indicate law-enforcement or fire/EMS use. The Traffic Collision Report prepared under Vehicle Code § 20008 will identify the driver's employer if a public-entity vehicle was involved. Bus numbers, fleet numbers, and stenciled unit IDs further identify the operator. When the involved driver's identity is ambiguous — for example, a contracted school-bus operator versus an in-house district driver — the safer course is to file the six-month claim against every plausible public entity to preserve the right to sue.

Q: What is the Government Tort Claims Act? A: The California Government Claims Act (still commonly called the Tort Claims Act), codified at Government Code §§ 810–996.6, governs every tort claim against a California public entity or its employees. The Act partially waives the common-law sovereign immunity that would otherwise bar suit, but conditions the right to sue on a strict pre-litigation procedure: a written administrative claim presented to the correct public entity, in the correct form (Gov. Code § 910), within the correct deadline (Gov. Code § 911.2 — six months for personal injury or wrongful death, one year for property damage). The entity then has 45 days to act under Gov. Code § 912.4, and rejection starts a separate six-month statute of limitations to file suit under Gov. Code § 945.6. Substantive liability is governed by Gov. Code § 815 (no liability except as provided by statute), § 815.2 (vicarious liability for employee torts), and § 835 (dangerous condition of public property). Punitive damages are barred under Gov. Code § 818.

Q: What happens if I miss the 6-month deadline? A: Ordinarily, your right to sue the public entity is forfeited. California courts treat the Government Code § 911.2 deadline as a substantive precondition to suit, not merely a procedural rule, and a complaint filed without a timely-presented claim is subject to demurrer or summary judgment on that ground alone — no matter how clear the entity's negligence or how severe the injuries. The narrow exception is the late-claim application process under Gov. Code § 911.4: a written application to the entity for leave to present a late claim must be filed within one year of accrual on enumerated grounds (mistake, inadvertence, surprise, excusable neglect; minority; physical or mental incapacity; death of the claimant). If the entity denies the application, Gov. Code § 946.6 allows a petition to the superior court for relief. After one year from accrual, no relief of any kind is available — the claim is permanently barred.

Q: Can I file a late government claim? A: Sometimes — but the grounds are narrow and the standard is strict. Government Code § 911.4 requires the late-claim application be presented to the public entity within one year of accrual, on one of four grounds: (1) the failure to present a timely claim was through mistake, inadvertence, surprise, or excusable neglect, and the public entity was not prejudiced; (2) the claimant was a minor during the entire six-month period; (3) the claimant was physically or mentally incapacitated during the entire six-month period and the disability caused the failure; or (4) the claimant died before the period expired. Ignorance of the law is not excusable neglect for a represented adult. If the entity denies the application, Gov. Code § 946.6 allows a petition to the superior court within six months of denial. The court applies the same § 911.4 grounds de novo. The reliable rule is to treat the original six-month deadline as absolute and never rely on the late-claim safety valve.

Q: Is my case worth less against a government entity? A: Not necessarily on compensatory damages, but yes on punitive exposure. Public entities pay full economic damages (medical bills, lost wages, future care, lost earning capacity) and full non-economic damages (pain and suffering, emotional distress, loss of consortium) without any general statutory cap — and Proposition 213's bar on uninsured-motorist non-economic damages does not apply to public-entity defendants. The material reductions: punitive damages are absolutely barred under Government Code § 818, even where the conduct would clearly support them against a private defendant; pre-judgment interest under CCP § 998 and Civil Code § 3291 is available but on different terms; and post-judgment collection runs through statutory appropriation procedures (Gov. Code §§ 970–971) that occasionally delay payment. Net effect: well-handled cases against public entities frequently equal or exceed comparable private-defendant recoveries, because public entities are solvent and rarely have policy limits to constrain settlement.

Q: What information must my government claim include? A: Government Code § 910 requires the claim to state the claimant's name and post-office address; the address to which notices are to be sent; the date, place, and other circumstances of the occurrence giving rise to the claim; a general description of the indebtedness, obligation, injury, damage, or loss; the name(s) of the public employee(s) causing the injury, if known; and either the dollar amount claimed (if under $10,000) or a statement that the claim exceeds $10,000 (which limits filing to an unlimited-jurisdiction case). The claim must be signed. Substantial compliance is generally sufficient under Government Code § 910.8, but the safer course is to use the entity's own form and complete every field.

Q: What happens after I file a government claim? A: Under Government Code § 912.4 the public entity has 45 days from presentation to act on the claim. Three outcomes: (1) the entity sends a written rejection — which under Government Code § 945.6 starts a 6-month statute of limitations to file the lawsuit; (2) the entity accepts the claim and negotiates settlement — rare for contested liability cases; (3) the entity says nothing, and after 45 days the claim is 'deemed rejected by operation of law' — and the claimant has 2 years from accrual (not 6 months) to file suit, because no written rejection was ever sent. The interaction between deemed rejection and the § 945.6 deadlines is technical; treat the post-rejection clock as 6 months from any written notice and do not wait.

Q: What if a CHP officer or police car caused my accident? A: CHP officers are State of California employees, so the claim is presented to the Department of General Services, Office of Risk and Insurance Management (ORIM), within six months under Government Code § 911.2. Municipal police officers are city employees, with claims to the city clerk. County sheriff vehicles are county employees, with claims to the county clerk. Officers responding to emergencies with lights and sirens may invoke limited statutory immunities under Vehicle Code § 17004 for certain types of conduct, but the immunity is not absolute and does not protect plainly negligent or reckless driving. Identification of the correct entity and timely presentation are the threshold issues; substantive liability is litigated after the claim is rejected.

Q: How is suing a city bus or LA Metro different from suing a private driver? A: Transit operators (LA Metro, MTA, SamTrans, AC Transit, OCTA, etc.) are separate public entities subject to the Government Claims Act. Each has its own claims process, its own claim form, and its own clerk or claims office. The six-month § 911.2 deadline applies; the 45-day § 912.4 entity response window applies; the post-rejection § 945.6 six-month suit deadline applies. Substantive liability often combines vicarious liability for operator negligence (Government Code § 815.2) with common-carrier liability under Civil Code § 2100, which holds carriers of passengers to the highest standard of care. The damages are full compensatory with no punitive exposure.

Q: What if the accident was caused by a defective road or missing sign? A: That is a 'dangerous condition of public property' claim under Government Code § 835, against the entity that owns or controls the roadway — typically Caltrans for state highways, a county for unincorporated county roads, a city for city streets. The plaintiff must prove that the property was in a dangerous condition at the time of injury, that the condition created a reasonably foreseeable risk of the kind of injury that occurred, that a negligent act or omission of a public employee created the condition or that the entity had actual or constructive notice and sufficient time to take protective measures, and that the dangerous condition proximately caused the injury. The same six-month § 911.2 claim deadline applies.

Q: Do I still need a lawyer if I file a government claim? A: Strongly recommended. Most defective government claims are rejected on procedural grounds — wrong entity, wrong form, missing required information, late filing — and those rejections are extremely difficult to undo. The interaction between Government Code §§ 911.2, 911.4, 912.4, 945.6, and 946.6 produces multiple traps that even experienced civil practitioners occasionally miss. Public-entity defense counsel are typically well-resourced and will pursue procedural defenses through summary judgment. The claim itself is short, but the decisions about what to say and what entity to name shape the entire downstream case — and the six-month clock leaves no margin for error.