The bill enacts a new provision in the Louisiana Code of Evidence, specifically Article 306.1, which addresses the presumption of causation in personal injury claims that are not filed under the Louisiana Workers' Compensation Law. It establishes that the absence of a prior history of an illness, injury, or condition does not create a presumption that such a condition was caused by the act that is the subject of the claim. This change aims to clarify the legal standards surrounding causation in personal injury cases and explicitly overrules the precedent set by the case Housley v. Cerise.

Additionally, the bill stipulates that its provisions will only apply prospectively, meaning they will not affect any causes of action that arose before the effective date of the Act. The Act will take effect upon the governor's signature or, if not signed, after the designated period for bills to become law without signature. If the governor vetoes the bill and it is later approved by the legislature, it will become effective the day after that approval.