The import of the Hanna v. Plumer opinion in its entirety is that the Federal Rules of Civil Procedure have been accorded a new priority and certainty of application in future federal court diversity of citizenship cases

I. Introduction

II. The Procedural Limitation on the Federal Rules: Two Distinct Tests for Two Contexts of the Issue … A. Caveat on the Outcome-Determinative Principle … B. The Validity of the Federal Rule—The Hanna Test