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Retroactivity And Prospectivity Of Judgments In American Law, Richard Kay

Richard Kay

In every American jurisdiction, new rules of law announced by a court are presumed to have retrospective effect—that is, they are presumed to apply to events occurring before the date of judgment. There are, however, exceptions in certain cases where a court believes that such application of the new rule will upset serious and reasonable reliance on the prior state of the law. This essay, a substantially abridged version of the United States Report on the subject, submitted at the Nineteenth International Congress of Comparative Law, summarizes these exceptional cases. It shows that the proper occasions for issuing exclusively or …