Analysis: Review of U.S. Supreme Court decision

The United States Supreme Court in 1971 announced a three-prong test to determine whether a new federal rule of law in a civil case would be applied purely prospectively, selectively prospectively, or retroactively:

First, the decision to be applied nonretroactively must establish a new principle of law, either by overruling clear past precedent on which litigants may have relied or by deciding an issue of first impression whose resolution was not clearly foreshadowed.

Second, it has been stressed that we must . . . weigh the merits and demerits in each case by looking to the prior history of the rule in question, its purpose and effect, and whether retrospective operation will further or retard its operation.

Finally, we have weighed the inequity imposed by retroactive application, for where a decision of this Court could produce substantial inequitable results if applied retroactively, there is ample basis in our cases for avoiding the injustice or hardship by a holding of nonretroactivity.