Negligence per se is a doctrine in US law whereby an act is considered negligent because it violates a statute. Wikipedia

Legal use in tort law Wikipedia Disambiguation

in US law whereby an act is considered negligent as it violates a statute (or regulation) Wikidata

Culpa imputed irrebuttably, because of the violation of a statute devised for the protection of the claimant from the damage, elimination of the requirement of negligence amounting to strict liability because of the violation of legislative safety rules. Wiktionary