"THE CHIEF JUSTICE delivered the opinion of the Court with respect to Parts I, II-A, II-B, and II-C, concluding that: 1. This Court need not pass on the constitutionality of the Missouri statute's preamble. In invalidating the preamble, the Court of Appeals misconceived the meaning of the dictum in Akron v. Akron Center for Reproductive Health, Inc., 462 U. S. 416, 462 U. S. 444, that "a State may not adopt one theory of when life begins to justify its regulation of abortions." That statement means only that a State could not "justify" any abortion regulation otherwise invalid under Roe v. Wade on the ground that it embodied the State's view about when life begins. The preamble does not, by its terms, regulate abortions or any other aspect of appellees' medical practice, and § 1.205.2 can be interpreted to do no more than offer protections to unborn children in tort and probate law, which is permissible under Roe v. Wade, supra, at 410 U. S. 161-162. This Court has emphasized that Roe implies no limitation on a State's authority to make a value judgment favoring childbirth over abortion, Maher v. Roe, 432 U. S. 464, 432 U. S. 474, and the preamble can be read simply to express that sort of value judgment. The extent to which the preamble's language might be used to interpret other state statutes or regulations is something that only the state courts can definitively decide, and, until those courts have applied the preamble to restrict appellees' activities in some concrete way, it is inappropriate for federal courts to address its meaning. Alabama State Federation of Labor v. McAdory, 325 U. S. 450, 325 U. S. 460. Pp. 492 U. S. 504-507."