A shrinking minority rule
Pure contributory negligence was once the dominant rule across American courts, inherited from English common law. Over the course of the 20th century, the overwhelming majority of states gradually replaced it with some form of comparative negligence, generally on the view that barring recovery entirely over a small degree of plaintiff fault produced results most courts and legislatures came to see as too harsh. Today, only five jurisdictions still apply the original, strict rule: Alabama, Maryland, North Carolina, Virginia, and the District of Columbia.
The rule itself is unchanged across all five
In each of these five jurisdictions, an injured person who bears any degree of fault for their own injury — even a small, genuinely disputed amount — can be completely barred from recovering damages, regardless of how much more at fault the other party was. There's no percentage threshold and no partial reduction; it is a true all-or-nothing outcome once any fault is found.
A common law doctrine, not a statute
Worth noting specifically for Alabama: this rule is a common law doctrine maintained by Alabama courts, not a rule the state legislature wrote into a statute. Alabama courts have generally left the question of whether to move away from contributory negligence to the legislature, rather than replacing the doctrine through case law themselves, and the legislature has not done so — which is part of why the rule has persisted in Alabama for as long as it has.
Consistent exceptions, applied state by state
All five contributory negligence jurisdictions recognize some version of the last clear chance doctrine, which can allow recovery despite a plaintiff's own earlier fault if the defendant had the final real opportunity to avoid the harm and failed to take it. The exact scope of this and other exceptions, like Alabama's wanton misconduct exception, can differ somewhat state by state, so the specific case law of the relevant jurisdiction matters, not just the general shared doctrine.
Why this small group of states matters disproportionately
Because these five jurisdictions apply an all-or-nothing rule instead of a percentage reduction, the practical stakes of a contested fault question are dramatically higher here than in the other 45-plus states. A disputed 10% of fault is a modest adjustment to a settlement number in a comparative negligence state; in Alabama, that exact same dispute can be the entire difference between a full recovery and nothing at all. See our guide to how fault arguments actually get built in Alabama for what that looks like in a real claim.