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What are the elements of a negligence claim in California?

California · updated 2026-08-31 · 589 words · 8 authorities cited

In California, a negligence claim generally requires proof that the defendant was negligent, that the plaintiff suffered harm, and that the defendant's negligence was a substantial factor in causing that harm 3. Specific types of negligence claims, such as those involving emotional distress or product liability, have additional elements [1, 2, 7].

The rule

To establish a claim for negligence in California, a plaintiff must prove three essential factual elements: (1) that the defendant was negligent; (2) that the plaintiff was harmed; and (3) that the defendant's negligence was a substantial factor in causing the plaintiff's harm 3.

How it applies

The general rule for negligence applies broadly, but specific contexts introduce additional or modified elements.

For claims of emotional distress without physical injury, where the plaintiff is a direct victim, the plaintiff must prove that the defendant was negligent, that the plaintiff suffered serious emotional distress, and that the defendant's negligence was a substantial factor in causing that serious emotional distress 1. Serious emotional distress is defined as distress that an ordinary, reasonable person would be unable to cope with 1. Emotional distress encompasses suffering, anguish, fright, horror, nervousness, grief, anxiety, worry, shock, humiliation, and shame 1.

When a plaintiff seeks to recover for emotional distress as a bystander due to perceiving injury or death to another, the elements are more specific 2. The plaintiff must prove that the defendant negligently caused injury to or the death of the victim 2. Additionally, the plaintiff must have been virtually present at the scene when the event occurred and aware that the event was causing injury to or the death of the victim 2. The plaintiff must also have suffered serious emotional distress, and the defendant's conduct must have been a substantial factor in causing that serious emotional distress 2. The plaintiff does not need to have been aware at the time that the defendant caused the event 2. Serious emotional distress for a bystander is also defined as distress an ordinary, reasonable person would be unable to cope with, and includes the same range of emotional experiences 2.

In cases where negligence is not contested, but causation and harm are, the plaintiff must prove that they were harmed and that the defendant's admitted negligence was a substantial factor in causing that harm 4.

For negligence claims involving products, the plaintiff must prove that the defendant designed, manufactured, supplied, installed, inspected, repaired, or rented the product, and was negligent in doing so 7. The plaintiff must also prove harm and that the defendant's negligence was a substantial factor in causing that harm 7.

When a law enforcement officer is accused of negligent use of nondeadly force, the plaintiff must prove that the officer used force, that the amount of force used was unreasonable, that the plaintiff was harmed, and that the officer's use of unreasonable force was a substantial factor in causing the harm 8. The determination of unreasonable force considers the totality of the circumstances, including whether the plaintiff posed an immediate threat, the seriousness of the crime, and whether the plaintiff was actively resisting 8.

What this does not cover

This article does not cover all specialized negligence claims, such as those involving fear of cancer, HIV, or AIDS due to malicious, oppressive, or fraudulent conduct 5. It also does not address claims based on implied warranty of merchantability, which are distinct from general negligence claims 6. The specific definitions of "negligent" or "negligence" themselves are not detailed here, nor are defenses to negligence claims.

Authorities cited

1. CACI 1620

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2. CACI 1621

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3. CACI 400

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4. CACI 424

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5. CACI 1623

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6. CACI 1231

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7. CACI 1220

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8. CACI 440

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Check this before you rely on it. Basil Brief has no citator, so it cannot tell you whether an authority has since been limited or overruled. It answers only from the California sources listed on the sources page, as they stood on 2026-08-31. Read the authority yourself before you cite it.

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