The principal cases in which the “zone of interest” test has been applied are those involving claims under the APA, and the test is most usefully understood as a gloss on the meaning of § 702. While inquiries into reviewability or prudential standing in other contexts may bear some resemblance to a “zone of interest” inquiry under the APA, it is not a test of universal application.
Data Processing speaks of claims “arguably within the zone of interests to be protected or regulated by the statute
or constitutional guarantee in question.” 397 U. S., at 153 (emphasis added). We doubt, however, that it is possible to formulate a single inquiry that governs all statutory and constitutional claims. As the Court commented in
Data Processing: “Generalizations about standing to sue are largely worthless as such.”
Id., at 151. We have occasionally listed the “zone of interest” inquiry among general prudential considerations bearing on standing, see,
e. g., Valley Forge Christian College v.
Americans United for Separation of Church & State, Inc., 454 U. S. 464, 475 (1982), and have on one occasion conducted a “zone of interest” inquiry in a case brought under the Commerce Clause, see
Boston Stock Exchange v.
State Tax Comm’n, 429 U. S. 318, 320-321, n. 3 (1977). While the decision that there was standing in
Boston Stock Exchange was undoubtedly correct, the invocation of the “zone of interest” test there should not be taken to mean that the standing inquiry under whatever constitutional or statutory provision a plaintiff asserts is the same as it would be if the “generous review provisions” of the APA apply,
Data Processing, 397 U. S., at 156. The difference made by the APA can be readily seen by comparing the “zone of interest” decisions
discussed supra, at 394-398, with cases in which a private right of action under a statute is asserted in conditions that make the APA inapplicable. See,
e. g., Cort v.
Ash, 422 U. S. 66 (1975); *401
Cannon v.
University of Chicago, 441 U. S. 677 (1979). In
Cort, corporate shareholders sought recovery of funds that a corporate official had expended in alleged violation of 18 U. S. C. § 610, the then-current version of the Corrupt Practices Act, which prohibits corporate expenditures and contributions for the purpose of influencing federal candidate elections. The Court gave the would-be plaintiffs the threshold burden of showing that they were “one of the class for whose
especial benefit the statute was enacted,” 422 U. S., at 78 (internal quotation omitted; emphasis in original). The shareholders argued that § 610 was motivated in part by Congress’ conviction that corporate officials have no moral right to use corporate assets for political purposes. The Court, in holding that this was not enough to give the shareholders an implied right of action under § 610, observed that “the protection of ordinary stockholders was at best a secondary concern [underlying §610].”
Id., at 81. Clearly, the Court was requiring more from the would-be plaintiffs in
Cort than a showing that their interests were arguably within the zone protected or regulated by §610.