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Also known as:most significant relationship · most significant contacts
Written by attorneys · grounded in primary & secondary sources — see below
A choice-of-law principle that selects the law of the state with the most significant relationship to the particular issue and to the thing and the parties. The principle evaluates contacts according to their relative importance with respect to the issue under the factors listed in Restatement (Second) of Conflict of Laws § 6. When the contacts are located in two or more states that share identical local rules on the issue, the contacts are treated as if grouped in a single state.
Sources & Authorities· 4 primary sources
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Statutes
Uniform Acts
Restatements
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How it applies
Common Examples
6
Corporate Venue in Multi-District State
Pioneer Energy, a corporation subject to personal jurisdiction statewide, maintains its central network operations center and several retail stores in the Southern District of a state with Northern and Southern Districts. A customer injured by a billing error in the Northern District sues Pioneer Energy in the Southern District. The court treats the Southern District as a separate state and finds that Pioneer Energy's substantial ongoing contacts there would support personal jurisdiction, so the corporation resides in the Southern District for venue purposes.
Interests in Movable Property
Patricia Patel sells a valuable painting stored in State X to Philip Powell, whose principal contacts are in State Y. After the buyer takes possession in State X, a dispute arises over title. The court identifies the state with the most significant relationship to the chattel and the parties under the principles of § 6 and applies that state's local law to resolve the ownership issue.
Immovable Property Conveyance
Pablo Perez conveys coastal land located in State B to Prosperity Investments under a contract negotiated and signed in State A that designates State A law. A third party later claims a prescriptive easement based on long use entirely in State B. The court applies the law that a court of State B would apply, including State B's choice-of-law rules, because the land is immovable.
Tort Choice of Law
Peter Park, a New York resident, is injured in an automobile accident in Ontario while riding as a passenger in a car driven by his New York host. The host's insurance policy was issued in New York. The court determines that New York has the most significant relationship to the issue of guest-host liability and applies New York law rather than Ontario law.
Babcock v. Jackson12 N.Y.2d p. 482, 240 N.Y.S.2d p. 750, 191 N.E.2d p. 284
Loss of Services Claim
A California corporation sends its vice president to Louisiana on business. While on the defendant's premises in Louisiana the vice president is negligently injured. The corporation later sues in California for loss of the employee's services. The court finds that Louisiana has the most significant relationship to the occurrence and the parties and applies Louisiana law barring the claim.
A Mexican citizen is abducted in Mexico pursuant to a plan allegedly devised in part by United States officials. He sues the United States under the Federal Tort Claims Act. The court holds that the claim arises in a foreign country and therefore falls within the statutory exception, regardless of any domestic planning.
Sosa v. Alvarez-Machain542 U.S. 692 (2004)
Common questions
Frequently Asked
5
How does the most significant relationship test differ from the traditional lex loci delicti rule?+
The traditional rule mechanically applied the law of the place of the wrong. The most significant relationship test instead weighs contacts and the policies listed in § 6 to identify the state with the greatest interest in the particular issue, allowing a court to apply the law of a state other than the place of injury when that state has a more compelling relationship to the occurrence and the parties.
Supporting sources
When contacts lie in two states with identical local rules, how are they treated?+
The contacts are treated for choice-of-law purposes as if they were all located in a single state. This aggregation prevents the mechanical counting of contacts from producing an artificial result when the substantive rules of the interested states are the same.
Supporting sources
Does the test apply to interests in both movables and immovables?+
Yes. For immovables the reference is ordinarily to the law of the situs, including its choice-of-law rules. For movables the reference is usually to the local law of the state with the most significant relationship to the thing and the parties under the principles of § 6.
Supporting sources
What role do the § 6 factors play in the analysis?+
The factors in § 6 guide the evaluation of contacts. They include the needs of the interstate system, the policies of the interested states, the protection of justified expectations, the basic policies underlying the field of law, and the needs of judicial administration. Their relative weight varies with the issue presented.
Supporting sources
How does the venue statute use similar language for corporate residence?+
In a multi-district state the statute treats each district as if it were a separate state and asks whether the corporation's contacts with that district would support personal jurisdiction. If no district meets the test, the corporation resides in the district of its most significant contacts. The analysis therefore parallels the most significant relationship inquiry used in choice of law.
Supporting sources
, the forum would not apply its own substantive law of contracts. Since the act of state doctrine reflects the desirability of presuming the relevant transaction valid, the same result…
most significant relationship
, and better rule of law have taken over center stage" (footnotes omitted)). But a good many States still employ essentially the same choice-of-law analysis in tort cases that the First…
theory." As we announced in Reich v. Purcell (1967) 67 Cal.2d 551, 553 [63 Cal. Rptr. 31, 432 P.2d 727], under the governmental interest analysis approach, the forum in a conflicts…
to the occurrence and the parties. The factors to be taken into account and to be evaluated according to their relative importance with respect to a particular issue, shall include: “(1)…
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