an essentially minor violation of law where the penalty upon conviction only consists of monetary forfeiture. A violation of law which could include imprisonment is a crime. It is distinguished from a misdemeanor or a felony in that the penalty for an infraction cannot include any imprisonment.
A violation of public order which is handled procedurally as if it were a crime but which is not a criminal offense. For example, exceeding the posted speed limit is a traffic infraction, while driving recklessly is a criminal offense.
a minor legal violation that is not punishable by jail time. For instance, in many jurisdictions, parking tickets are infractions, as are minor traffic violations. Typically, these violations are resolved by payment of a fine.
A minor violation of the law that is punishable only by a fine--for example, a traffic or parking ticket. Not all vehicle-related violations are infractions, however--refusing to identify oneself when involved in an accident is a misdemeanor in some states.