Pennsylvania officials may not count votes from mail-in or absentee ballots that lack accurate, handwritten dates on their return envelopes, the state Supreme Court ruled unanimously Tuesday, a week before tabulation will begin in races for governor, the U.S. Senate, and the state General Assembly. The court directed county boards of elections to “segregate and preserve” those ballots, the Associated Press reported. The justices split 3-3 on whether making the envelope dates mandatory under state law would violate provisions of the U.S. Civil Rights Act of 1964, which states that immaterial errors or omissions should not be used to prevent voting.