Is my understanding of Erie Doctrine right?
Step 1: Is this a diversity case?
Erie only applies when federal jurisdiction is based on diversity of citizenship (or supplemental jurisdiction over state law claims)
Step 2: Is there a Federal Rule of Civil Procedure or federal statute on point (aka Is there an FRCP (or federal statute) that directly answers this issue)
A. If it is a Federal Statute or law it will apply
- Under the Supremacy Clause (U.S. Const. Art. VI), a federal statute or law that is constitutional will always control over conflicting state law.
B. If it is a Federal Rule of Civil Procedure (FRCP)
- The court must determine if the FRCP conflicts with the state rule, meaning can both the Federal Rule and the state policy be followed simultaneously?
- If YES → apply both
- If NO → the FRCP must pass the Rules Enabling Act (REA) test. The REA says federal rules cannot "abridge, enlarge, or modify any substantive right." Courts give enormous deference to the FRCP.
- If the FRCP does abridge/enlarge/modify a substantive right → it is invalid → you apply state law.
- If the FRCP does not abridge (or only incidentally affects it) → it is valid → you apply the federal rule.
Step 3:If NO federal rule or statute exists...
The court must determine if the state rule is substantive (apply state) or procedural (apply federal practice).
A state law is substantive if
(1) the state law is outcome determinative, or
- Ie Elements of claims, Statutes of limitations, Tolling rules, Burden of proof, Standards for negligence, Comparative negligence, Damage caps, Choice of law rule, Contract interpretation, Privileges
(2) Would ignoring the state rule encourage: forum shopping or inequitable administration of the laws?
- forum-shopping – litigants will be encouraged to sue in federal court to take advantage of benefits not afforded in state court or
- inequitable administration of the laws – the application of substantially different rules in federal and state court will cause unfair outcomes.
A state law is PROCEDURAL if it governs the mechanics of litigation:
- Ie Pleading, Discovery, Joinder, Motions, Service of process, Depositions, Summary judgment procedure, Jury instructions
Step 4: When it is unclear if procedural or substantive
If the state rule is not clearly procedural or substantive, the court uses the Byrd balancing test:
- First, ask: Is the state rule "bound up" with the state-created rights and obligations?
- If YES (e.g., the rule is intimately tied to the state's definition of a tort or contract), apply state law.
- If NO, the court balances:
- State's interest: How strong is the state’s interest in having this rule applied?
- Federal interest: How important is the federal judiciary's interest in having a uniform, predictable federal procedure for cases across all districts?