A state law that reimburses the costs of transportation to and from parochial schools does not violate the Establishment Clause of the First Amendment. The Establishment Clause is incorporated against the states, and the Constitution requires a sharp separation between government and religion. Decided February 10, 1947 (argued November 20, 1946). Opinion of the Court: Hugo Black → go there Dissenting: Jackson, Rutledge. Applied: the First Amendment → go there Applied: the Fourteenth Amendment → go there Topic: Freedom of religion. Everson v. Board of Education, 330 U.S. 1 (1947), is a landmark decision of the United States Supreme Court that applied the Establishment Clause of the First Amendment to state law. Before this decision, the clause, which states, "Congress shall make no law respecting an establishment of religion", restricted only the federal government, while many states continued to grant certain religious denominations legislative or effective privileges. Wiki link