Sitting In Diversity
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In the
law of the United States The law of the United States comprises many levels of Codification (law), codified and uncodified forms of law, of which the supreme law is the nation's Constitution of the United States, Constitution, which prescribes the foundation of the ...
, diversity jurisdiction is a form of
subject-matter jurisdiction Subject-matter jurisdiction, also called jurisdiction ''ratione materiae'', is a legal doctrine regarding the ability of a court to lawfully hear and adjudicate a case. Subject-matter relates to the nature of a case; whether it is criminal, ci ...
that gives
United States federal courts The federal judiciary of the United States is one of the three branches of the federal government of the United States organized under the Constitution of the United States, United States Constitution and Law of the United States, laws of the fed ...
the power to hear
lawsuit A lawsuit is a proceeding by one or more parties (the plaintiff or claimant) against one or more parties (the defendant) in a civil court of law. The archaic term "suit in law" is found in only a small number of laws still in effect today ...
s that do not involve a
federal question In United States law, federal question jurisdiction is a type of subject-matter jurisdiction that gives United States federal courts the power to hear civil cases where the plaintiff alleges a violation of the United States Constitution, federa ...
. For a federal court to have diversity jurisdiction over a lawsuit, two conditions must be met. First, there must be "diversity of citizenship" between the parties, meaning the plaintiffs must be citizens of different
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
s than the defendants. Second, the lawsuit's "
amount in controversy Amount in controversy (sometimes called jurisdictional amount) is a term used in civil procedure to denote the amount at stake in a lawsuit, in particular in connection with a requirement that persons seeking to bring a lawsuit in a particular cou ...
" must be more than $75,000. If a lawsuit does not meet these two conditions, federal courts will normally lack the jurisdiction to hear it unless it involves a federal question, and the lawsuit would need to be heard in state court instead. The
United States Constitution The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
, in Article III, Section 2, grants
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
the power to permit federal courts to hear diversity cases through legislation authorizing such jurisdiction. The provision was included because the
Framers of the Constitution The Constitutional Convention took place in Philadelphia from May 25 to September 17, 1787. While the convention was initially intended to revise the league of states and devise the first system of federal government under the Articles of Conf ...
were concerned that when a case is filed in one state, and it involves parties from that state and another state, the state court might be biased toward the party from that state. Congress first exercised that power and granted federal trial
circuit courts Circuit courts are court systems in several common law jurisdictions. It may refer to: * Courts that literally sit 'on circuit', i.e., judges move around a region or country to different towns or cities where they will hear cases; * Courts that s ...
diversity jurisdiction in the
Judiciary Act of 1789 The Judiciary Act of 1789 (ch. 20, ) was a United States federal statute enacted on September 24, 1789, during the first session of the First United States Congress. It established the federal judiciary of the United States. Article Three of th ...
. Diversity jurisdiction is currently codified at . In 1969, the
American Law Institute The American Law Institute (ALI) is a research and advocacy group of judges, lawyers, and legal scholars limited to 3,000 elected members and established in 1923 to promote the clarification and simplification of United States common law and i ...
explained in a 587-page analysis of the subject that diversity is the "most controversial" type of federal jurisdiction, because it "lays bare fundamental issues regarding the nature and operation of our federal union."


Statute


Diversity of parties

Mostly, in order for diversity jurisdiction to apply, complete diversity is required, where none of the
plaintiff A plaintiff ( Π in legal shorthand) is the party who initiates a lawsuit (also known as an ''action'') before a court. By doing so, the plaintiff seeks a legal remedy. If this search is successful, the court will issue judgment in favor of the ...
s can be from the same state as any of the
defendant In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case. Terminology varies from one juris ...
s. A corporation is treated as a citizen of the state in which it is incorporated ''and'' the state in which its principal place of business is located. A partnership or limited liability company is considered to have the citizenship of all of its constituent partners/members. Thus, an LLC or partnership with one member or partner sharing citizenship with an opposing party will destroy diversity of jurisdiction. Cities and towns (incorporated municipalities) are also treated as citizens of the states in which they are located, but states themselves are not considered citizens for the purpose of diversity. U.S. citizens are citizens of the state in which they are domiciled, which is the last state in which they resided and had an intent to remain. A national bank chartered under the
National Bank Act The National Banking Acts of 1863 and 1864 were two United States federal banking acts that established a system of national banks chartered at the federal level, and created the United States National Banking System. They encouraged developmen ...
is treated as a citizen of the state in which it is "located". In 2006, the Supreme Court rejected an approach that would have interpreted the term "located" to mean that a national bank is a citizen of every state in which it maintains a branch.''Wachovia Bank, N.A. v. Schmidt'', 546 U.S. 303, 307 (2006). The Supreme Court concluded that "a national bank ... is a citizen of the State in which its main office, as set forth in its articles of association, is located". The Supreme Court, however, left open the possibility that a national bank may ''also'' be a citizen of the state in which it has its principal place of business, thus putting it on an equal footing with a state-formed corporation. This remains an open question, with some lower courts holding that a national bank is a citizen of ''only'' the state in which its main office is located, and others holding that a national bank is ''also'' a citizen of the state in which it has its principal place of business. The diversity jurisdiction statute also allows federal courts to hear cases in which: *Citizens of a U.S. state are parties on one side of the case, with nonresident alien(s) as adverse parties; *Complete diversity exists as to the U.S. parties, and nonresident aliens are additional parties; *A foreign state (i.e., country) is the plaintiff, and the defendants are citizens of one or more U.S. states; or *Under the
Class Action Fairness Act of 2005 The U.S. Class Action Fairness Act of 2005, 28 U.S.C. §§ 1332(d), 1453, 1711–15, expanded federal subject-matter jurisdiction over many large class action lawsuits and mass actions in the United States. The bill was the first major piece o ...
, a
class action A class action is a form of lawsuit. Class Action may also refer to: * ''Class Action'' (film), 1991, starring Gene Hackman and Mary Elizabeth Mastrantonio * Class Action (band), a garage house band * "Class Action" (''Teenage Robot''), a 2002 e ...
can usually be brought in a federal court when there is just ''minimal diversity'', such that ''any'' plaintiff is a citizen of a different state from ''any'' defendant. Class actions that do not meet the requirement of the Class Action Fairness Act must have complete diversity between class representatives (those named in the lawsuit) and the defendants. A U.S. citizen who is domiciled outside the U.S. is not considered to be a citizen of any U.S. state, and cannot be considered an alien. The presence of such a person as a party completely destroys diversity jurisdiction, except for a class action or mass action in which minimal diversity exists with respect to other parties in the case. If the case requires the presence of a party who is from the same state as an opposing party, or a party who is a U.S. citizen domiciled outside the country, the case must be dismissed, the absent party being deemed "indispensable". The determination of whether a party is indispensable is made by the court following the guidelines set forth in Rule 19 of the
Federal Rules of Civil Procedure The Federal Rules of Civil Procedure (officially abbreviated Fed. R. Civ. P.; colloquially FRCP) govern civil procedure in United States district courts. They are the companion to the Federal Rules of Criminal Procedure. Rules promulgated by the ...
.


Diversity is determined at the time that the action is filed

Diversity is determined at the time that federal court jurisdiction is invoked (at time of filing, if directly filed in U.S. district court, or at time of removal, if removed from state court), and on the basis of the state citizenships of the parties at that time. A change in domicile by a natural person before or after that date is irrelevant. However, in '' Caterpillar, Inc. v. Lewis'' (1996), the Supreme Court also held that federal jurisdiction predicated on diversity of citizenship can be sustained even if there did not exist complete diversity at the time of removal to federal court, so long as complete diversity exists at the time the district court enters judgment. The court in Caterpillar sustained diversity as an issue of "fairness" and economy, given a lower court's original mistake that allowed removal.


Corporate citizenship based on principal place of business

Before 1958, a corporation for the purpose of diversity jurisdiction was deemed to be a citizen only of the state in which it had been formally incorporated. This was originally not a problem when a corporation could be chartered only by the enacting of a
private bill Proposed bills are often categorized into public bills and private bills. A public bill is a proposed law which would apply to everyone within its jurisdiction. A private bill is a proposal for a law affecting only a single person, group, or are ...
by the
state legislature A state legislature is a Legislature, legislative branch or body of a State (country subdivision), political subdivision in a Federalism, federal system. Two federations literally use the term "state legislature": * The legislative branches of ...
(either with the consent of the
governor A governor is an politician, administrative leader and head of a polity or Region#Political regions, political region, in some cases, such as governor-general, governors-general, as the head of a state's official representative. Depending on the ...
or over his veto). Thus, corporations were normally headquartered in the same state where they were incorporated, since their promoters had to be quite well-known and well-connected in that state in order to obtain passage of a private bill. The traditional rule only became a problem when general incorporation laws were invented around 1896, state legislatures began a
race to the bottom Race to the bottom is a Socioeconomics, socio-economic concept describing a scenario in which individuals or companies compete in a manner that incrementally reduces the utility of a product or service in response to perverse incentives. This pheno ...
to attract out-of-state corporations, and corporations began to incorporate in one state ( usually Delaware) but set up their headquarters in another state. During the 20th century, the traditional rule came to be seen as extremely unfair in that corporate defendants actually headquartered in a state but incorporated elsewhere could remove diversity cases against them from state courts to federal courts, while individual and unincorporated defendants physically based in that same state (e.g., partnerships) could not. Therefore, during the 1950s, various proposals were introduced to broaden the citizenship of corporations in order to reduce their access to federal courts. In 1957, conservative
Southern Democrats Southern Democrats are members of the U.S. Democratic Party who reside in the Southern United States. Before the American Civil War, Southern Democrats mostly believed in Jacksonian democracy. In the 19th century, they defended slavery in the ...
, as part of their larger agenda to protect
racial segregation Racial segregation is the separation of people into race (human classification), racial or other Ethnicity, ethnic groups in daily life. Segregation can involve the spatial separation of the races, and mandatory use of different institutions, ...
and
states' rights In United States, American politics of the United States, political discourse, states' rights are political powers held for the state governments of the United States, state governments rather than the federal government of the United States, ...
by greatly reducing the power of the federal judiciary, introduced a bill to limit diversity jurisdiction to natural citizens. Liberals in Congress recognized this was actually a form of retaliation by conservative Southerners against the
Warren Court The Warren Court was the period in the history of the Supreme Court of the United States from 1953 to 1969 when Earl Warren served as the chief justice. The Warren Court is often considered the most liberal court in U.S. history. The Warren Cou ...
, and prevailed in 1958 with the passage of a relatively narrow bill which deemed corporations to be citizens of both their states of incorporation and principal place of business. The two proposals, respectively, promised to reduce the federal civil caseload by 25% versus 2%. However, Congress never defined what exactly is a "principal place of business". The question of what that phrase meant became hotly disputed during the late 20th century as many areas of the
American economy The United States has a highly developed mixed economy. It is the world's largest economy by nominal GDP and second largest by purchasing power parity (PPP). As of 2025, it has the world's seventh highest nominal GDP per capita and ninth ...
came under the control of large national corporations. Although these corporations usually had a headquarters in one state, the majority of their employees, assets, and revenue were often physically located at retail sites in the states with the largest populations, and hence a
circuit split In United States federal courts, a circuit split, also known as a split of authority or split in authority, occurs when two or more different circuit courts of appeals provide conflicting rulings on the same legal issue. The existence of a circu ...
developed in which some judges held that the latter states could ''also'' be treated as the corporation's principal place of business. The rationale was that those states were where the business was actually occurring or being transacted. This issue was finally resolved by a unanimous Supreme Court in '' Hertz Corp. v. Friend'' (2010), which held that a corporation's principal place of business is presumed to be the place of the corporation's "nerve center" from where its officers conduct the corporation's important business.


Amount in controversy

The
United States Congress The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, ...
has placed an additional barrier to diversity jurisdiction: the
amount in controversy Amount in controversy (sometimes called jurisdictional amount) is a term used in civil procedure to denote the amount at stake in a lawsuit, in particular in connection with a requirement that persons seeking to bring a lawsuit in a particular cou ...
requirement. This is a minimum amount of money which the parties must be contesting is owed to them. Since the enactment of the Federal Courts Improvement Act of 1996, 28 U.S.C. §1332(a) has provided that a claim for relief must exceed the sum or value of $75,000, exclusive of interest and costs and without considering counterclaims. In other words, the amount in controversy must be equal to or more than $75,000.01, and (in a case which has been removed from a state court to the federal court) a federal court must remand a case back to state court if the amount in controversy is exactly $75,000.00. A single plaintiff may add different claims against the same defendant to meet the amount. Two plaintiffs, however, may not join their claims together to meet the amount, but if one plaintiff meets the amount standing alone, the second plaintiff can piggyback as long as the second plaintiff's claim arises out of the same facts as the main claim. More detailed information may be obtained from the article on federal supplemental jurisdiction. The amount specified has been regularly increased over the past two centuries. Courts will use the legal certainty test to decide whether the dispute is over $75,000. Under this test, the court will accept the
pled An organic light-emitting diode (OLED), also known as organic electroluminescent (organic EL) diode, is a type of light-emitting diode (LED) in which the emission (electromagnetic radiation), emissive electroluminescence, electroluminescent lay ...
amount unless it is legally certain that the pleading party cannot recover more than $75,000. For example, if the dispute is solely over the breach of a contract by which the defendant had agreed to pay the
plaintiff A plaintiff ( Π in legal shorthand) is the party who initiates a lawsuit (also known as an ''action'') before a court. By doing so, the plaintiff seeks a legal remedy. If this search is successful, the court will issue judgment in favor of the ...
$10,000, a federal court will dismiss the case for lack of
subject matter jurisdiction Subject-matter jurisdiction, also called jurisdiction ''ratione materiae'', is a legal doctrine regarding the ability of a court to lawfully hear and adjudicate a case. Subject-matter relates to the nature of a case; whether it is criminal, ci ...
, or remand the case to state court if it arrived via removal. In personal injury cases, plaintiffs will sometimes claim amounts "not to exceed $75,000" in their complaint to avoid removal of the case to federal court. If the amount is left unspecified in the ad damnum, as is required by the pleading rules of many states, the defendant may sometimes be able to remove the case to federal court unless the plaintiff's lawyer files a document expressly disclaiming damages in excess of the jurisdictional requirement. Because juries decide what
personal injuries ''Personal Injuries'' is a novel by the American author Scott Turow, published in 1999. Like all of Turow's novels, it takes place in fictional Kindle County and many of the characters are recognized from other Turow novels. Plot The novel begi ...
are worth, compensation for injuries may exceed $75,000 such that the "legal certainty" test will not bar federal court jurisdiction. Many plaintiffs' lawyers seek to avoid federal courts because of the perception that they are more hostile to plaintiffs than most state courts.


Domestic relations and probate exceptions

A longstanding judge-made rule holds that federal courts have no jurisdiction over
divorce Divorce (also known as dissolution of marriage) is the process of terminating a marriage or marital union. Divorce usually entails the canceling or reorganising of the legal duties and responsibilities of marriage, thus dissolving the M ...
or other
domestic relations In the common law tradition, the law of domestic relations is a broad category that encompasses: * divorce; * property settlements; * alimony, spousal support, or other maintenance; * the establishment of Paternity (law), paternity; * the establ ...
cases, even if there is diversity of citizenship between the parties and the amount of money in controversy meets the jurisdictional limit. As the Supreme Court has stated, " e whole subject of the domestic relations of husband and wife, parent and child, belongs to the laws of the states, and not to the laws of the United States." The court concluded "that the domestic relations exception ... divests the federal courts of power to issue divorce, alimony, and child custody decrees." In explaining this exception, the high court noted that domestic cases frequently required the issuing court to retain jurisdiction over recurring disputes in interpreting and enforcing those decrees. State courts have developed expertise in dealing with these matters, and the interest of
judicial economy Judicial economy or procedural economy is the principle that the limited resources of the legal system or a given court should be conserved by the refusal to decide one or more claims raised in a case. For example, the plaintiff may claim that the ...
required keeping that litigation in the courts most experienced to handle it. However, federal courts are not limited in their ability to hear tort cases arising out of domestic situations by the doctrine. A similar exception has been recognized for
probate In common law jurisdictions, probate is the judicial process whereby a will is "proved" in a court of law and accepted as a valid public document that is the true last testament of the deceased; or whereby, in the absence of a legal will, the e ...
and decedent's estate litigation, which continues to hold for the primary cases; diversity jurisdiction does not exist to probate wills or administer decedent's estates directly. Diversity jurisdiction is allowed for some litigation that arises under trusts and other estate planning documents, however.


Removal and remand

If a case is originally filed in a state court, and the requirements for federal jurisdiction are met (diversity and amount in controversy, the case involves a federal question, or a supplemental jurisdiction exists), the defendant (and only the defendant) may remove the case to a federal court. A case cannot be removed to a state court. To remove to a federal court, the defendant must file a ''notice of removal'' with both the state court where the case was filed and the federal court to which it will be transferred. The notice of removal must be filed within 30 days of the first removable document. For example, if there is no diversity of citizenship initially, but the non-diverse defendant is subsequently dismissed, the remaining diverse defendant(s) may remove to a federal court. However, no removal is available after one year of the filing of the complaint. A party's citizenship at the time of the filing of the action is considered the citizenship of the party. If a defendant later moves to the same state as the plaintiff while the action is pending, the federal court will still have jurisdiction. However, if any properly joined and served defendant is a citizen of the state where the action is first filed, then removal is not allowed. If a plaintiff or a co-defendant opposes removal, he may request a ''
remand Remand may refer to: * Remand (court procedure), when an appellate court sends a case back to the trial court or lower appellate court * Pre-trial detention, detention of a suspect prior to a trial, conviction, or sentencing See also

*''Reman ...
'', asking the federal court to send the case back to the state court. A remand is rarely granted if the diversity and amount in controversy requirements are met. A remand may be granted, however, if a non-diverse party joins the action, or if the parties settle some claims among them, leaving the amount in controversy below the requisite amount.


Law applied

The
United States Supreme Court The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that turn on question ...
determined in ''
Erie Railroad Co. v. Tompkins ''Erie Railroad Co. v. Tompkins'', , was a landmark U.S. Supreme Court decision in which the Court held that the United States does not have a general federal common law and that U.S. federal courts must apply state law, not federal law, to la ...
'' (1938) that the law to be applied in a diversity case would be the law of whatever state in which the action was filed. This decision overturned
precedent Precedent is a judicial decision that serves as an authority for courts when deciding subsequent identical or similar cases. Fundamental to common law legal systems, precedent operates under the principle of ''stare decisis'' ("to stand by thin ...
s that had held that federal courts could create a general
federal common law Federal common law is a term of United States law used to describe common law that is developed by the federal courts, instead of by the courts of the various states. Ever since Louis Brandeis, writing for the Supreme Court of the United State ...
, instead of applying the law of the forum state. This decision was an interpretation of the word "laws" in 28 U.S.C. 1652, known as the
Rules of Decision Act The Rules of Decision Act mandates the application of substantive state law in cases heard in U.S. federal courts sitting in diversity, except where state law is preempted by federal law. The U.S. Supreme Court in ''Swift v. Tyson'' (1842) original ...
, to mean not just statutes enacted by the legislature but also the common law created by state courts. Under the Rules of Decision Act, the laws of the several states, except where the constitution or treaties of the United States or Acts of Congress otherwise require or provide, shall be regarded as rules of decision in civil actions in the courts of the United States, in cases where they apply. Because the RDA provides for exceptions and modifications by Congress, it is important to note the effect of the Rules Enabling Act (REA), 28 U.S.C. 2072. The REA delegates the legislative authority to the Supreme Court to ratify rules of practice and procedure and rules of evidence for federal courts. Thus, it is not ''Erie'' but the REA which created the distinction between substantive and procedural law. Thus, while state substantive law is applied, the Federal Rules of Civil Procedure and the Federal Rules of Evidence still govern the "procedural" matters in a diversity action, as clarified in '' Gasperini v. Center for Humanities'' (1996). The REA, 28 U.S.C. 2072(b), provides that the Rules will not affect the substantive rights of the parties. Therefore, a federal court may still apply the "procedural" rules of the state of the initial filing, if the federal law would "abridge, enlarge, or modify" a substantive right provided for under the law of the state.


See also

*
Class Action Fairness Act of 2005 The U.S. Class Action Fairness Act of 2005, 28 U.S.C. §§ 1332(d), 1453, 1711–15, expanded federal subject-matter jurisdiction over many large class action lawsuits and mass actions in the United States. The bill was the first major piece o ...
*
Federal question jurisdiction In United States law, federal question jurisdiction is a type of subject-matter jurisdiction that gives United States federal courts the power to hear civil cases where the plaintiff alleges a violation of the United States Constitution, feder ...
* Federalist No. 80 *'' Saadeh v. Farouki'' (1997) *'' Strawbridge v. Curtiss'' (1806) *
Supplemental jurisdiction Supplemental jurisdiction, also sometimes known as ancillary jurisdiction or pendent jurisdiction, is the authority of United States federal courts to hear additional claims substantially related to the original claim even though the court would l ...


References


External links


28 U.S.C § 1332. Diversity of Citizenship
{{DEFAULTSORT:Diversity Jurisdiction United States civil procedure Jurisdiction * Article Three of the United States Constitution American legal terminology