“[T]he provisions of this subchapter . . . shall supersede any and all State laws insofar as they may now or hereafter relate to any employee benefit plan described in § 1003(a) of this title and not exempt under § 1003(b) of this title.” 29 U. S. C. § 1144(a) (emphasis added).
We have held that the words “relate to” should be construed expansively: “[a] law ‘relates to’ an employee benefit plan, in the normal sense of the phrase, if it has a connection with or reference to such a plan.” Shaw v. Delta Airlines, Inc., 463 U. S. 85, 96-97 (1983). Nothing in our case law, however, supports appellant’s position that the word “plan” should in effect be read out of the statute. Indeed, Shaw itself speaks of a state law’s connection with or reference to a plan. Ibid. The words “benefit” and “plan” are used separately throughout ERISA, and nowhere in the statute are they treated as the equivalent of one another. Given the basic difference between a “benefit” and a “plan,” Congress’ choice of language is significant in its pre-emption of only the latter.
Thus, as a first matter, the language of the ERISA presents a formidable obstacle to appellant’s argument. The reason for Congress’ decision to legislate with respect to plans rather than to benefits becomes plain upon examination of the purpose of both the pre-emption section and the regulatory scheme as a whole.
B
The second answer to appellant’s argument is that preemption of the Maine statute would not further the purpose of ERISA pre-emption. In analyzing whether ERISA’s preemption section is applicable to the Maine law, “as in any preemption analysis, ‘the purpose of Congress is the ultimate touchstone.’” Metropolitan Life Ins. Co. v. Massachusetts, 471 U. S. 724, 747 (1985) (quoting Malone v. White Motor Corp., 435 U. S. 497, 504 (1978)). Attention to purpose is particularly necessary in this case because the terms “employee benefit plan” and “plan” are defined only tautologically in the statute, each being described as “an employee welfare