delivered the opinion of the Court.
In this case we construe the term “employee” as it appears in § 3(6) of the Employee Retirement Income Security Act of 1974 (ERISA), 88 Stat. 834, 29 U. S. C. § 1002(6), and read it to incorporate traditional agency law criteria for identifying master-servant relationships.
I
From 1962 through 1980, respondent Robert Darden operatеd an insurance agency according to the terms of several *320 contracts he signed with petitioners Nationwide Mutual Insurance Co. et al. Darden promised to sell only Nationwide insurance policies, and, in exchange, Nationwide agreed to pay him commissions on his sales and enroll him in a сompany retirement scheme called the “Agent’s Security Compensation Plan” (Plan). The Plan consisted of two different programs: the “Deferred Compensation Incentive Credit Plan,” under which Nationwide annually credited an agent’s retirement account with a sum based on his business performance, аnd the “Extended Earnings Plan,” under which Nationwide paid an agent, upon retirement or termination, a sum equal to the total of his policy renewal fees for the previous 12 months.
Such were the contractual terms, however, that Darden would forfeit his entitlement to the Plan’s benefits if, within a year of his termination аnd 25 miles of his prior business location, he sold insurance for Nationwide’s competitors. The contracts also disqualified him from receiving those benefits if, after he stopped representing Nationwide, he ever induced a Nationwide policyholder to cancel one of its policies.
In November 1980, Nationwide exercised its contractual right to end its relationship with Darden. A month later, Darden became an independent insurance agent and, doing business from his old office, sold insurance policies for several of Nationwide’s competitors. The company reacted with the charge that his new business activities disqualified him from receiving the Plan benefits to which he would have been entitled otherwise. Darden then sued for the benefits, which he claimed were nonforfeitable because already vested under the terms of ERISA. 29 U. S. C. § 1053(a).
Darden brought his action under 29 U. S. C. § 1132(a), which enables a benefit plan “participant” to enforce the substantive provisions of ERISA. The Act elsewhere defines “participant” as “any employee or former employee of an employer .. . who is or may become eligible to- receive a benefit *321 of any type from an employee bеnefit plan . . . .” § 1002(7). Thus, Darden’s ERISA claim can succeed only if he was Nationwide’s “employee,” a term the Act defines as “any individual employed by an employer.” § 1002(6).
It was on this point that the District Court granted summary judgment to Nationwide. After applying common-law agency principles and, to an extent unspeсified, our decision in
United States
v.
Silk,
The United States Court of Appeals for the Fourth Circuit vacated.
Darden
v.
Nationwide Mutual Ins.
Co.,
In due course, Nationwide filed a petition for certiorari, which we granted on October 15, 1991.
II
We havе often been asked to construe the meaning of “employee” where the statute containing the term does not helpfully define it. Most recently we confronted this problem in
Community for Creative Non-Violence
v.
Reid,
“[w]here Congress uses terms that have accumulated settled meaning under ... the common law, a court must infer, unless the statute otherwise dictates, that Congress means to incorporate the established meaning of these terms. ... In the past, when Congress has used the term ‘employee’ without defining it, we have concluded that Congress intended to describe the conven *323 tional master-servant relationship as understood by common-law agency doctrine. See, e. g., Kelley v. Southern Pacific Co.,419 U. S. 318 , 322-323 (1974); Baker v. Texas & Pacific R. Co.,359 U. S. 227 , 228 (1959) (per curiam); Robinson v. Baltimore & Ohio R. Co.,237 U. S. 84 , 94 (1915).”490 U. S., at 739-740 (internal quotation marks omitted).
While we supported this reading of the Copyright Act with other observations, the general rule stood as independent authority for the decision.
So too should it stand here. ERISA’s nominal definition of “employee” as “any individual employed by an employer,” 29 U. S. C. § 1002(6), is completely circular and explains nothing. As for the rest of the Act, Darden does not cite, and we do not find, any provision either giving specific guidance on the term’s meaning or suggesting that construing it to incorporate traditional agency law principles would thwart the congressional design or lead to absurd results. Thus, we adopt a common-law test for determining who qualifies as an “employee” under ERISA, 3 a test we most recently summarized in Reid:
“In determining whether a hired party is an emplоyee under the general common law of agency, we consider the hiring party’s right to control the manner and means by which the product is accomplished. Among the other factors relevant to this inquiry are the skill required; the source of the instrumentalities and tools; the location of the work; the duration of the relationship between the parties; whether the hiring party has the right to assign additional projects to the hired party; the extent of the hired party’s discretion over when and how long to work; the method of payment; the hired *324 party’s role in hiring and paying assistants; whether the work is part of the rеgular business of the hiring party; whether the hiring party is in business; the provision of employee benefits; and the tax treatment of the hired party.”490 U. S., at 751-752 (footnotes omitted).
Cf. Restatement (Second) of Agency § 220(2) (1958) (listing nonexhaustive criteria for identifying master-servant relationship); Rev. Rui. 87-41, 1987-1 Cum. Bull. 296, 298-299 (setting forth 20 factors as guides in determining whether an individual qualifies as a common-law “employee” in various tax law contexts). Since the common-law test contains “no shorthand formula or magic phrase that can be applied to find the answer,... all of the incidents of the relationship must be assessed and weighed with no one factor being decisive.”
NLRB
v.
United Ins. Co. of America,
In taking its different tack, the Court of Appeals cited
NLRB
v.
Hearst Publications, Inc.,
To be sure, Congress did not, strictly speaking, “overrule” our interpretation of those statutes, since the Constitution invests the Judiciary, not the Legislature, with the final power to construe the law. But a principle of statutory construction can endure just so many legislative revisitations, and Reid’s presumption that Congress means an agency law definition for “employee” unless it clearly indicates otherwise signaled our abandonment of Silk’s emphasis on construing that term “ ‘in the light of the mischief to be corrected and the end to be attained.’” Silk, supra, at 713, quoting Hearst, supra, at 124.
At oral argument, Darden tried to subordinate
Reid
to
Rutherford Food Corp.
v.
McComb,
Quite apart from its inconsistency with our precedents, the Fourth Circuit’s analysis reveals an approach infected with circularity and unable to furnish predictable results. Applying the first element of its test, which ostensibly enquires into an employee’s “expectations,” the Court of Appeals concluded that Nationwide had “created a reasonable expectation on the ‘employees’ part that benefits would be paid to them in the future,”
Darden,
This circularity infects the test’s second prong as well, which considers the extent to which a claimant has relied on his “expectation” of benefits by “remaining for ‘long years,’ or a substantial period of time, in the ‘employer’s’ serviсe, and by foregoing other significant means of providing for [his] retirement.”
Id.,
at 706. While this enquiry is ostensibly factual, we have seen already that one of its objects may not be: to the extent that actual “expectations” are (as in Darden’s case) unnecessary to relief, the nature of a claimant’s required “reliance” is left unclear. Moreover, any en-quiry into “reliance,” whatever it might entail, could apparently lead to different results for claimants holding identical jobs and enrolled in identical plans. Because, for example, Darden failed to make much independent provision for his retirement, he satisfied the “reliance” prong of the Fourth Circuit’s test, see
Any such approach would severely compromise the capacity of compаnies like Nationwide to figure out who their “employees” are and what, by extension, their pension-fund obligations will be. To be sure, the traditional agency law criteria offer no paradigm of determinacy. But their application generally turns on factual variables within an employer’s knowledge, thus рermitting categorical judgments about the “employee” status of claimants with similar job descriptions. Agency law principles comport, moreover, with our recent precedents and with the common understanding, reflected in those precedents, of the difference between an employee and an independent contractor.
*328 HH H-I
While the Court of Appeals noted that “Darden most probably would not qualify as an employee” under traditional agency law principles, Darden, supra, at 705, it did not actually decide that issue. We therefore reverse the judgment and remand the case to that court for proceedings consistent with this opinion.
So ordered.
Notes
The Court of Appeals cited Congress’s declaration that “many employees with long years of employment are losing anticipated retirement benefits,” that employee benefit plans “have become an important faсtor affecting the stability of employment and the successful development of industrial relations,” and that ERISA was necessary to “assur[e] the equitable character of such plans and their financial soundness.”
The Court of Appeals also held that the Deferred Compensation Plan was a pension plan subject to regulation under ERISA, but that the Extended Earnings Plan was not.
As in
Reid,
we construe the term to incorporate “the general common law of agency, rather than ... the law of any particular State.”
Community for Creative Non-Violence
v.
Reid,
The National Labor Relations Act simply defined “employee” to mean (in relevant part) “any employee.” 49 Stat. 450 (1935). The Social Security Act defined the term to “include,” among оther, unspecified occupations, “an officer of a corporation.” 49 Stat. 647.
While both Darden and the United States cite a Department of Labor “Opinion Letter” as support for their separate positions, see Brief for Respondent 34-36, Brief for United States as
Amicus Curiae
16-18, neither suggests that we owe that letter’s legal conclusions any deference under
Chevron U. S. A. Inc.
v.
Natural Resources Defense Council, Inc.,
