Negligent Infliction of Emotional Distress (NIED) vs. Intentional Infliction of Emotional Distress (IIED)
A detailed comparison of these two torts rules, including key differences, exam strategies, and guidance on when to apply each.
Overview
NIED and IIED both allow recovery for emotional distress, but they differ in the required mental state, the nature of the defendant's conduct, and the limitations on who can recover. IIED requires intentional or reckless conduct that is extreme and outrageous, while NIED requires negligent conduct that causes foreseeable emotional harm.
IIED, recognized in the Restatement (Second) of Torts Section 46, requires conduct "so outrageous in character, and so extreme in degree, as to go beyond all possible bounds of decency." The threshold is deliberately high to prevent trivial claims. The plaintiff must suffer severe emotional distress. Intent or recklessness is required regarding the emotional distress itself. There are no special proximity or relationship requirements beyond the extreme and outrageous conduct standard.
NIED is more restrictive in terms of who can recover. Jurisdictions use different tests: the "impact rule" (plaintiff must have suffered some physical impact), the "zone of danger" test (plaintiff must have been in the zone of physical danger from defendant's negligence), or the "bystander" test from Dillon v. Legg and Thing v. La Chusa (requiring that the plaintiff be closely related to the direct victim, be present at the scene, and contemporaneously perceive the injury-producing event). Many jurisdictions require physical manifestation of the emotional distress for NIED claims, though this requirement has been relaxed in some states.
Key Differences
| Aspect | Negligent Infliction of Emotional Distress (NIED) | Intentional Infliction of Emotional Distress (IIED) |
|---|---|---|
| Required mental state | Negligence (failure to exercise reasonable care) | Intent or recklessness regarding emotional distress |
| Nature of conduct | Ordinary negligence causing foreseeable emotional harm | Extreme and outrageous conduct beyond all bounds of decency |
| Who can recover | Limited by zone of danger or bystander tests in most jurisdictions | Anyone targeted by or present during the outrageous conduct |
| Physical manifestation | Often required (physical symptoms of distress) | Not required; severe emotional distress alone suffices |
| Severity threshold | Varies; some courts require serious emotional distress | Must be severe emotional distress |
Exam Tips
When emotional distress is at issue on a torts exam, analyze IIED first if the defendant's conduct was deliberate and arguably outrageous. The high bar for "extreme and outrageous" conduct is the main battleground. Then analyze NIED if the conduct was negligent. For NIED, identify which test the jurisdiction uses (impact, zone of danger, or bystander) and apply it carefully. A common trap is analyzing IIED when the conduct is merely rude or insensitive but not extreme and outrageous. Another trap is forgetting to address the physical manifestation requirement for NIED. Always discuss both torts when the facts could support either theory.
When to Apply Which
Apply IIED when the defendant deliberately or recklessly engaged in extreme and outrageous conduct causing severe emotional distress. Apply NIED when the defendant's negligent conduct foreseeably caused emotional distress to the plaintiff or a bystander. The key threshold is the defendant's mental state and the nature of the conduct: deliberate outrageous behavior triggers IIED, while careless behavior triggering emotional harm is NIED territory.