Timeline of a Personal Injury Case in California

A Stage-by-Stage Legal Guide — With Authority

If you or a loved one has been hurt due to someone else’s negligence, you deserve to know exactly what to expect — from the moment of injury through trial and beyond. This guide walks you through each phase of a California personal injury case, grounded in the actual statutes, court rules, jury instructions, and case law that govern your rights.

Stage 1: The Injury Occurs

Every personal injury case begins with a harmful event — a car crash, a slip and fall, a defective product, or another act of negligence. From the moment of injury, the law is already at work, and understanding its foundational principles is essential.

The Core Legal Duty: California Civil Code § 1714 establishes the bedrock rule: every person is responsible not only for the results of their willful acts, but also for injury caused to another by their want of ordinary care or skill. This general duty of reasonable care underlies virtually every personal injury claim in the state.

The Four Elements: California juries are instructed pursuant to CACI No. 400 that a plaintiff must prove four essential elements to establish negligence: (1) that the defendant owed the plaintiff a duty of care; (2) that the defendant breached that duty; (3) that the breach was a substantial factor in causing harm; and (4) that the plaintiff suffered damages as a result. The California Supreme Court articulated these elements in Ladd v. County of San Mateo (1996) 12 Cal.4th 913, 917, holding that the elements of negligence are a legal duty to use due care, a breach of such duty, and the breach as the proximate or legal cause of the resulting injury.

The question of duty is determined by the court as a matter of law; breach and causation are for the jury. This interplay between judicial and jury function is fundamental to how negligence cases are tried in California.

Controlling Authority:

• Primary Law: Cal. Civ. Code § 1714 (general duty of reasonable care)
• CACI (Quasi-Primary): CACI No. 400 — Negligence: Essential Factual Elements (duty, breach, causation, damages); approved by Judicial Council per Cal. Rules of Court, rule 2.1050(e)
• Case Law: Ladd v. County of San Mateo (1996) 12 Cal.4th 913, 917 (four-element formulation of negligence)

Stage 2: Medical Treatment & Investigation

Immediately following an injury, your most important obligation is to your health. Seek medical attention right away — not only to protect your well-being, but because gaps in medical treatment can be used against you by insurance companies and defense counsel.

Preserving Evidence: During this stage, your attorney will be simultaneously investigating the incident: gathering police reports, accident scene photographs, witness statements, surveillance footage, and any physical evidence. In catastrophic cases, experts may be retained to reconstruct the accident, analyze defective products, or document conditions at a premises.

Medical Documentation: Every office visit, diagnostic test, prescription, and therapy session creates the medical record that forms the backbone of your damages case. Continuity of care is critical — treating consistently with your doctors demonstrates that your injuries are genuine and ongoing.

Practical Tip: Never post about your accident, injuries, or daily activities on social media. Defense counsel routinely monitors plaintiffs’ social media accounts and will use any inconsistency against you at deposition and at trial.

This pre-litigation investigation phase sets the foundation for everything that follows. A thorough investigation at this stage can mean the difference between a strong case and one that collapses under scrutiny.

Stage 3: Pre-Litigation — The Demand Phase

Before a lawsuit is ever filed, most personal injury cases go through a demand phase — an opportunity to resolve your claim without the time and expense of litigation. Your attorney will compile a comprehensive demand package that includes medical records, bills, lost wage documentation, and a detailed narrative of liability and damages.

Dealing with Insurance: California law requires that insurance companies conduct fair claim investigations and respond to demands in good faith. If a defendant’s insurer refuses to engage reasonably or low-balls your claim, litigation becomes necessary.

Mediation: Many cases settle at this stage, often through informal negotiation or private mediation. Mediation is a voluntary, confidential process where a neutral mediator assists the parties in reaching resolution. Statements made in mediation are confidential and generally inadmissible under California Evidence Code §§ 1115–1128.

Government Defendants: If your injury was caused by a government agency — a city, county, the State of California, or any public entity — different and far more urgent rules apply. Under California Government Code § 911.2, you must file a government tort claim within six (6) months of the incident before you may sue. Failure to comply with this mandatory prerequisite generally results in a permanent bar of your claim.

Controlling Authority:

• Primary Law: Cal. Gov. Code § 911.2 (6-month deadline to file government tort claim); Cal. Gov. Code §§ 945.4, 950.2 (claim presentation as prerequisite to lawsuit); Cal. Evid. Code §§ 1115–1128 (mediation confidentiality)
• Treatise: CEB: California Civil Procedure Before Trial, Ch. 1 (pre-litigation strategy and demand letters); California Civil Practice — Torts (Thomson Reuters/West), §§ on pre-litigation demand practice

Stage 4: Filing the Lawsuit

If pre-litigation efforts fail, the next step is filing a Complaint in the appropriate California Superior Court. The Complaint formally identifies the parties, sets forth the causes of action (e.g., negligence, premises liability, products liability), and states the relief sought.

Statute of Limitations — The Critical Deadline: Time is the single most unforgiving constraint in personal injury law. Under California Code of Civil Procedure § 335.1, a plaintiff must bring an action for personal injury within two (2) years from the date of injury. Miss this deadline — for any reason — and your claim is forever barred, regardless of its merit.

Important Exceptions and Tolling:

• Minors: If the injured person is under 18, the statute is tolled until their 18th birthday, after which they have two additional years (CCP § 352(a)).
• Government defendants: The deadline to file a government claim is six months; the deadline to file suit after claim rejection is six months (Gov. Code § 912.4).
• Delayed discovery: The clock may be extended when a plaintiff could not reasonably have discovered the injury — common in toxic exposure and latent-injury cases.

Service of Process: After filing, the defendant must be formally served with the Summons and Complaint. The defendant generally has 30 days to respond after proper service.

Warning: The two-year statute of limitations under CCP § 335.1 is absolute for most personal injury cases against private defendants. If a government entity may be involved, the six-month government claim deadline can arrive with devastating speed. Consult an attorney immediately after any serious injury.

Controlling Authority:

• Primary Law: CCP § 335.1 (2-year statute of limitations for personal injury and wrongful death); CCP § 352(a) (tolling for minors); Cal. Gov. Code § 911.2 (6-month government claim deadline); CCP § 474 (Doe defendant provisions / relation-back doctrine)
• Treatise: Rutter Group: California Practice Guide — Personal Injury, ¶¶ 5:1 et seq. (statutes of limitations and tolling); CEB: California Civil Procedure Before Trial, §§ 11.1–11.60 (filing and service)

Stage 5: The Discovery Phase

Discovery is the formal, court-supervised process by which each side investigates the other’s evidence, witnesses, and legal theories. In California, the Civil Discovery Act (CCP §§ 2016.010–2036.050) governs this phase comprehensively. Discovery typically runs from the filing of the lawsuit through 30 days before trial.

Written Interrogatories (CCP §§ 2030.010 et seq.): Each side may serve written questions that the other must answer under oath within 30 days. Parties are generally limited to 35 specially prepared interrogatories per set absent a supporting declaration of necessity (CCP § 2030.030).

Requests for Production (CCP §§ 2031.010 et seq.): Document demands require the opposing party to produce relevant documents, electronically stored information (ESI), and tangible items. Responses are due within 30 days. This is how medical records, incident reports, corporate policies, vehicle data, and insurance policies are obtained.

Depositions (CCP §§ 2025.010 et seq.): Depositions are sworn, out-of-court oral examinations of witnesses, taken before a certified reporter. The plaintiff will be deposed, key witnesses will be deposed, and the defendant will be deposed. Expert witnesses will also be deposed after designation.

Requests for Admissions (CCP §§ 2033.010 et seq.): RFAs ask the opposing party to formally admit or deny specific facts, legal conclusions, or document authenticity. Admissions are binding and streamline trial by removing undisputed issues from contention.

Independent Medical Examinations (CCP § 2032.220): Defendants are typically entitled to have the plaintiff examined by their own physician. The results of this defense medical exam often become a central battleground at trial.

Expert Witnesses: Expert witness demands must be exchanged 70 days before trial; designations are due 50 days before trial (CCP §§ 2034.220–2034.230). Common experts include accident reconstructionists, biomechanical engineers, treating physicians, and vocational rehabilitation specialists.

Discovery Cutoff: In California, discovery generally closes 30 days before trial, and motions to compel must be heard no later than 15 days before trial (CCP § 2024.020). Failure to timely conduct discovery can result in waiver of critical evidence.

Controlling Authority:

• Primary Law — California Civil Discovery Act: CCP § 2025.010 et seq. (depositions); CCP § 2030.010 et seq. (interrogatories; 30-day response; 35-interrogatory limit); CCP § 2031.010 et seq. (document demands; 30-day response); CCP § 2033.010 et seq. (requests for admission); CCP § 2032.220 (defense independent medical examination); CCP §§ 2034.220–2034.230 (expert witness designation deadlines); CCP § 2024.020 (30-day discovery cutoff before trial)
• Treatise: Rutter Group: California Practice Guide — Civil Procedure Before Trial, Ch. 8 (comprehensive discovery practice); Rutter Group: California Practice Guide — Personal Injury, ¶¶ 6:1 et seq. (discovery strategy in PI cases)

Stage 6: Pre-Trial Motions

As the trial date approaches, both parties have the opportunity to shape the legal landscape through pre-trial motions. These motions can dramatically narrow the issues, exclude damaging evidence, or — in some cases — resolve the entire case before a jury ever hears it.

Motion for Summary Judgment (CCP § 437c): A defendant may move for summary judgment, arguing there is no triable issue of material fact and that they are entitled to judgment as a matter of law. The plaintiff must oppose with evidence creating a genuine dispute of fact.

Motions in Limine: These are pre-trial motions to exclude or limit specific evidence at trial. Common targets in personal injury cases include prior medical history, social media posts, hearsay statements, and unqualified expert testimony. They are typically heard at the final status conference or just before trial begins.

Mandatory Settlement Conference (Cal. Rules of Court, rule 3.1380): Every civil case in California is subject to a Mandatory Settlement Conference (MSC) before trial. Trial counsel and the parties themselves — with full authority to settle — must personally attend. Each party must submit a written MSC statement no later than five court days before the conference. Many cases resolve at the MSC.

Section 998 Offers to Compromise (CCP § 998): This powerful statutory tool allows either party to make a formal offer of judgment. If the offeree rejects the 998 offer and fails to obtain a more favorable result at trial, the rejecting party loses the right to post-offer costs and may be required to pay the offering party’s expert-witness fees. In Madrigal v. Hyundai Motor America (2025), the California Supreme Court held that CCP § 998 cost-shifting applies even to pre-trial stipulated settlements less favorable than a prior 998 offer. Section 998 offers must be made at least 10 days before trial and remain open for 30 days (or until trial, whichever is sooner).

Controlling Authority:

• Primary Law: CCP § 437c (motion for summary judgment / summary adjudication); CCP § 998 (offer to compromise / cost-shifting); Cal. Rules of Court, rule 3.1380 (mandatory settlement conference)
• Case Law: Madrigal v. Hyundai Motor America (2025) [Cal. Supreme Court] — CCP § 998 cost-shifting applies to pre-trial stipulated settlements less favorable than a prior 998 offer
• Treatise: Rutter Group: California Practice Guide — Personal Injury, ¶¶ 4:240 et seq. (mandatory settlement conferences); Rutter Group: California Practice Guide — Civil Procedure Before Trial, Ch. 13 (motions in limine; summary judgment)

Stage 7: Trial

If the case has not settled, it proceeds to trial. California personal injury trials are typically jury trials, though the parties may stipulate to a bench trial. The trial process consists of: jury selection (voir dire), opening statements, presentation of evidence and witnesses, closing arguments, and jury deliberation.

Jury Instructions — CACI: Before the jury deliberates, the judge instructs them on the law using California Civil Jury Instructions (CACI). Under California Rules of Court, rule 2.1050(e), use of the Judicial Council’s CACI instructions is strongly encouraged and constitutes the standard for California civil trials. In a negligence case, the jury will receive CACI No. 400 (negligence elements), CACI No. 430 (causation — substantial factor), and various damages instructions.

Burden of Proof: The plaintiff bears the burden of proving each element of negligence by a preponderance of the evidence — meaning it is more likely true than not. CACI No. 200 instructs the jury on this standard. Unlike criminal cases, the standard is not beyond a reasonable doubt.

Evidence Presentation: Both sides present witnesses, medical experts, accident reconstructionists, and other evidence. The plaintiff’s treating physicians typically testify about the nature and extent of injuries, causation, and future medical needs. Defense experts challenge these opinions, often arguing that injuries are pre-existing, exaggerated, or unrelated to the incident.

A personal injury trial in Los Angeles Superior Court for a moderately complex case typically lasts between 5 and 15 court days. High-value catastrophic injury cases can last several weeks.

Controlling Authority:

• CACI (Quasi-Primary): CACI No. 200 — Preponderance of the Evidence; CACI No. 400 — Negligence: Essential Factual Elements; CACI No. 430 — Causation: Substantial Factor; CACI No. 3900 series — Compensatory Damages
• Primary Law: Cal. Rules of Court, rule 2.1050(e) (use of Judicial Council instructions strongly encouraged); Cal. Evid. Code §§ 500–522 (burden of proof)
• Treatise: Rutter Group: California Practice Guide — Personal Injury, ¶¶ 9:1 et seq. (trial preparation and conduct)

Stage 8: Verdict & Damages

After deliberation, the jury returns a verdict. In California, a three-fourths jury vote (9 of 12 jurors) is sufficient to return a verdict in a civil case (Cal. Const., art. I, § 16). If the jury finds for the plaintiff, it then determines the amount of damages.

Categories of Damages: California law recognizes two broad categories of compensatory damages:

• Economic damages: Objectively verifiable losses — past and future medical expenses, lost wages, loss of earning capacity, and property damage.
• Non-economic damages: Subjective, non-monetary losses — pain and suffering, emotional distress, loss of enjoyment of life, and loss of consortium.
• Punitive damages: Available in cases involving oppression, fraud, or malice (Cal. Civ. Code § 3294).

Comparative Fault — The Rule of Li v. Yellow Cab: California follows the doctrine of pure comparative negligence, first adopted by the California Supreme Court in Li v. Yellow Cab Co. (1975) 13 Cal.3d 804. Under this rule, a plaintiff’s damages are reduced in direct proportion to their percentage of fault — even if the plaintiff is more at fault than the defendant. If a jury finds a plaintiff 70% responsible and the defendant 30% responsible for $500,000 in damages, the plaintiff still recovers $150,000.

Medical Damages — The Howell Rule: Following Howell v. Hamilton Meats & Provisions, Inc. (2011) 52 Cal.4th 541, a plaintiff’s recovery of past medical expenses is limited to the amount actually paid or incurred — not the full billed amount — where the plaintiff received the benefit of a negotiated rate reduction.

Even if you are partially at fault for your own accident, you may still recover damages under California’s pure comparative fault system. Do not assume that shared responsibility eliminates your right to compensation.

Controlling Authority:

• Case Law: Li v. Yellow Cab Co. (1975) 13 Cal.3d 804 (California adopts pure comparative negligence; liability apportioned in direct proportion to fault in all cases); Howell v. Hamilton Meats & Provisions, Inc. (2011) 52 Cal.4th 541 (recovery of past medical expenses limited to amounts actually paid or incurred, not billed charges)
• Primary Law: Cal. Civ. Code § 3333 (measure of damages for tort); Cal. Civ. Code § 3294 (punitive damages for malice, fraud, oppression); Cal. Const., art. I, § 16 (three-fourths civil jury verdict)
• CACI (Quasi-Primary): CACI No. 3900 — Introduction to Tort Damages; CACI No. 3905A — Physical Pain, Mental Suffering, and Emotional Distress; CACI No. 406 — Apportionment of Responsibility (comparative fault)

Stage 9: Post-Trial — Judgment, Collection & Appeal

The verdict is not always the end. Post-trial proceedings address the formalization of judgment, collection of any award, and — if warranted — the appellate process.

Judgment and Memorandum of Costs: After the verdict, the prevailing party files a memorandum of costs to recover allowable litigation costs. The losing party has 15 days to move to tax (challenge) those costs. If a valid CCP § 998 offer was made and rejected, post-offer costs and expert fees shift accordingly.

Motions for New Trial and JNOV: A losing party may move for a new trial (CCP § 657) or for judgment notwithstanding the verdict — JNOV — (CCP § 629), arguing that the verdict was against the weight of the evidence, that damages are excessive or inadequate, or that legal errors occurred. These motions must be filed and heard within strict time limits following entry of judgment.

Collecting the Judgment: A judgment in your favor is not a check. If the defendant fails to pay voluntarily, collection is pursued through wage garnishment, bank levies, real property liens, or charging orders against business interests. When defendants are insured — as is typical in auto accident and premises liability cases — the insurance carrier generally satisfies the judgment up to policy limits.

Appeals: Either party may appeal the verdict to the California Court of Appeal. An appeal is not a new trial — it is a review of the trial court record for prejudicial legal error. The notice of appeal must be filed within 60 days of service of the notice of entry of judgment (Cal. Rules of Court, rule 8.104). The appellate process in California typically takes 18 months to 3 years from filing of the notice of appeal to a written decision.

A successful personal injury verdict can be appealed, potentially delaying your recovery for years. Experienced trial counsel will work throughout the case to build a clean record that minimizes appellate risk and protects the verdict.

Controlling Authority:

• Primary Law: CCP § 657 (motion for new trial — grounds and time limits); CCP § 629 (judgment notwithstanding the verdict — JNOV); CCP § 1032 (prevailing party costs); CCP § 1033.5 (allowable costs)
• Appellate Rules: Cal. Rules of Court, rule 8.104 (60-day deadline to file notice of appeal); Cal. Rules of Court, rules 8.200–8.360 (appellate briefing and procedure)
• Treatise: Rutter Group: California Practice Guide — Civil Appeals & Writs, Ch. 3 (deadlines and jurisdictional requirements); Rutter Group: California Practice Guide — Personal Injury, ¶¶ 10:1 et seq. (post-trial motions and appeals)

Why Experienced Counsel Matters at Every Stage

As this guide illustrates, a California personal injury case is not a single event — it is a multi-stage legal process governed by a dense body of statutes, court rules, jury instructions, and case law. Missing a filing deadline, failing to preserve evidence, or misunderstanding the rules of discovery can cost a client everything.

At VictimsLawyer.com, we handle every stage of your case — from the moment of injury through verdict and, if necessary, appeal. Our work is grounded in the same authority that governs California courts: the Code of Civil Procedure, the California Rules of Court, CACI, and the decisions of the California Supreme Court and Courts of Appeal.

If you or a loved one has been injured due to someone else’s negligence, contact us today for a free consultation. You pay nothing unless we win.

Disclaimer: This blog post is provided for general informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship. Laws change; always consult a licensed California personal injury attorney for advice specific to your situation. VictimsLawyer.com is a Los Angeles, California personal injury law practice.

About the Author: Steven M. Sweat, Esq.

Steven M. Sweat is the founder and principal attorney of Steven M. Sweat, Personal Injury Lawyers, APC, with 30 years of dedicated experience representing accident victims and their families throughout Los Angeles and California. A graduate of California Western School of Law and Florida State University (cum laude), he has built his career on a single mission: to be a tireless champion for the “little guy” against powerful insurance companies and corporate interests.

Over three decades, Mr. Sweat and his firm have recovered hundreds of millions of dollars in verdicts and settlements for clients injured in car accidents, slip and falls, trucking collisions, wrongful death cases, and more. His commitment to exceptional, ethical representation has earned him recognition from the most selective and respected organizations in the legal profession, including:

• Super Lawyers (Thomson Reuters) — selected for 10+ consecutive years, an honor awarded to fewer than 5% of attorneys in California
• Top 100 Trial Lawyer — The National Trial Lawyers
• Multi-Million Dollar Advocates Forum
• The Litigator Awards
• Avvo 10.0 “Superb” Rating — the highest possible rating
• Justia 10.0 Rating
• Best Attorneys of America
• Ethical Lawyers of America

Mr. Sweat is an active member of the Los Angeles County Bar Association, the American Bar Association, Consumer Attorneys of Los Angeles (CAALA), Consumer Attorneys of California (CAOC), and the American Association for Justice (AAJ).

If you or a loved one has been injured due to someone else’s negligence, contact Steven M. Sweat today for a free consultation. Call toll-free at 866-966-5240 or visit victimslawyer.com. You pay no fee unless we win.