Held: Because it is evident that any recount seeking to meet 3 U. S. C. § 5's December 12 "safe-harbor" date would be unconstitutional under the Equal Protection Clause, the Florida Supreme Court's judgment ordering manual recounts is reversed. The Clause's requirements apply to the manner in which the voting franchise is exercised. Having once granted the right to vote on equal terms, Florida may not, by later arbitrary and disparate treatment, value one person's vote over that of another. See, e. g., Harper v. Virginia Bd. of Elections, 383 U. S. 663, 665. The recount mechanisms implemented in response to the state court's decision do not satisfy the minimum requirement for nonarbitrary treatment of voters. The record shows that the standards for accepting or rejecting contested ballots might vary not only from county to county but indeed within a single county from one recount team to another. In addition, the recounts in three counties were not limited to so-called undervotes but extended to all of the ballots. Furthermore, the actual process by which the votes were to be counted raises further concerns because the court's order did not specify who would recount the ballots. Where, as here, a court orders a statewide remedy, there must be at least some assurance that the rudimentary requirements of equal treatment and fundamental fairness are satisfied. The State has not shown that its procedures include the necessary safeguards. Upon due consideration of the difficulties identified to this point, it is obvious that the recount cannot be conducted in compliance with the requirements of equal protection and due process without substantial additional work. The court below has said that the legislature intended the State's electors to participate fully in the federal electoral process, as provided in 3 U. S. C. § 5, which requires that any controversy or contest that is designed to lead to a conclusive selection of electors be completed by December 12. That date is here, but there is no recount procedure in place under the state court's order that comports with minimal constitutional standards.