"Although Roe allowed state regulation after the point of viability to protect the potential life of the fetus, the Court subsequently rejected attempts to regulate in this manner. In Colautti v. Franklin, 439 U.S. 379, 99 S.Ct. 675, 58 L.Ed.2d 596 (1979), the Court struck down a statute that governed the determination of viability. Id., at 390-397, 99 S.Ct., at 683-687. In the process, we made clear that the trimester framework incorporated only one definition of viability—ours —as we forbade States from deciding that a certain objective indicator "be it weeks of gestation or fetal weight or any other single factor"—should govern the definition of viability. Id., at 389, 99 S.Ct., at 682. In that same case, we also invalidated a regulation requiring a physician to use the abortion technique offering the best chance for fetal survival when performing postviability abortions. See id., at 397-401, 99 S.Ct., at 686-689; see also Thornburgh v. American College of Obstetricians and Gynecologists, supra, 476 U.S., at 768-769, 106 S.Ct., at 2183 (invalidating a similar regulation). In Thornburgh, the Court struck down Pennsylvania's requirement that a second physician be present at postviability abortions to help preserve the health of the unborn child, on the ground that it did not incorporate a sufficient medical emergency exception. Id., at 769-771, 106 S.Ct., at 2183-2184. Regulations governing the treatment of aborted fetuses have met a similar fate. In Akron, we invalidated a provision requiring physicians performing abortions to "insure that the remains of the unborn child are disposed of in a humane and sanitary manner." 462 U.S., at 451, 103 S.Ct., at 2503 (internal quotation marks omitted). Dissents in these cases expressed the view that the Court was expanding upon Roe in imposing ever greater restrictions on the States. See Thornburgh v. American College of Obstetricians and Gynecologists, 476 U.S., at 783, 106 S.Ct., at 2190 (Burger, C. J., dissenting) ("The extent to which the Court has departed from the limitations expressed in Roe is readily apparent"); id., at 814, 106 S.Ct., at 2206 (WHITE, J., dissenting) ("[T]he majority indiscriminately strikes down statutory provisions that in no way contravene the right recognized in Roe"). And, when confronted with State regulations of this type in past years, the Court has become increasingly more divided: the three most recent abortion cases have not commanded a Court opinion. See Ohio v. Akron Center for Reproductive Health, 497 U.S. 502, 110 S.Ct. 2972, 111 L.Ed.2d 405 (1990); Hodgson v. Minnesota, 497 U.S. 417, 110 S.Ct. 2926, 111 L.Ed.2d 344 (1990); Webster v. Reproductive Health Services, 492 U.S. 490, 109 S.Ct. 3040, 106 L.Ed.2d 410 (1989). The task of the Court of Appeals in the present case was obviously complicated by this confusion and uncertainty. Following Marks v. United States, 430 U.S. 188, 97 S.Ct. 990, 51 L.Ed.2d 260 (1977), it concluded that in light of Webster and Hodgson, the strict scrutiny standard enunciated in Roe was no longer applicable, and that the "undue burden" standard adopted by Justice O'CONNOR was the governing principle. This state of confusion and disagreement warrants reexamination of the "fundamental right" accorded to a woman's decision to abort a fetus in Roe, with its concomitant requirement that any state regulation of abortion survive "strict scrutiny." See Payne v. Tennessee, 501 U.S. ----, ---- - ----, 111 S.Ct. 2597, 2609-2611, 115 L.Ed.2d 720 (1991) (observing that reexamination of constitutional decisions is appropriate when those decisions have generated uncertainty and failed to provide clear guidance, because "correction through legislative action is practically impossible" (internal quotation marks omitted)); Garcia v. San Antonio Metropolitan Transit Authority, 469 U.S. 528, 546-547, 557, 105 S.Ct. 1005, 1015, 1021, 83 L.Ed.2d 1016 (1985)."