Planned Parenthood v. Casey, 505 U.S. 833 (1992),[1] was a landmark United States Supreme Court case in which the constitutionality of several Pennsylvania state statutory provisions regarding abortion was challenged. The Court’s plurality opinion reaffirmed the central holding of Roe v. Wade[2] stating that “matters, involving the most intimate and personal choices a person may make in a lifetime, choices central to personal dignity and autonomy, are central to the liberty protected by the Fourteenth Amendment.”[3] The Court’s plurality opinion upheld the constitutional right to have an abortion while altering the standard for analyzing restrictions on that right, crafting the “undue burden” standard for abortion restrictions. Planned Parenthood v. Casey differs from Roe, however, because under Roe the state could not regulate abortions in the first trimester whereas under Planned Parenthood v. Casey the state can regulate abortions in the first trimester, or any point before fetus viability and beyond as long as that regulation does not pose an undue burden on an abortion. Applying this new standard of review, the Court upheld four regulations and invalidated the requirement of spousal notification.