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Injury Attorney LawyerInformation · Not Advice
Glossary·2 min read·Updated Apr 10, 2026

Duty of Care

Duty of care is the first element of a negligence claim. Without a duty, there's no breach to argue about. Who owes a duty to whom is surprisingly specific.

What it means

Duty of care is the legal obligation to behave with the level of caution that a reasonable person would use in the same situation. Drivers owe a duty to other drivers and pedestrians. Doctors owe a duty to their patients. Property owners owe a duty to people lawfully on their property. Who owes a duty to whom depends on the relationship.

How the standard shifts

The standard of care changes with context. A driver owes a duty of ordinary care. A professional — doctor, lawyer, accountant — owes the level of care reasonable in their profession. A common carrier (like an airline or bus company) owes a heightened duty to passengers. These differences matter because 'breach' is measured against the applicable standard.

No duty, no claim

If no duty is owed, there's no negligence claim — even if harm occurred. Classic example: a passerby generally has no legal duty to rescue a drowning stranger. It feels counterintuitive, but without a duty, the failure to act can't be a breach. Exceptions exist for special relationships (employer/employee, innkeeper/guest) and for situations where someone voluntarily begins a rescue.

Key Takeaways

  • 01Duty of care is the legal obligation to act with reasonable caution.
  • 02Who owes a duty depends on the relationship — driver to driver, doctor to patient, owner to visitor.
  • 03The standard of care shifts based on context — professional, common carrier, etc.
  • 04Without a duty, there's no negligence claim.

General information only. This page explains common concepts in plain language. It is not legal advice and does not create an attorney-client relationship. Laws vary by state and change over time. For any specific situation, consult a licensed attorney in your jurisdiction.