the Congressional Research Service, Counting Electoral Votes (2020)
“ Federal law, in what is known as the “safe harbor” provision, provides that if a state, under its established statutory procedure, has made a “final determination of any controversy or contest” relative to the presidential election in the state, and if that determination is completed under this procedure at least six days before the electors are to meet to vote, such determination is to be considered “conclusive” as to which electors were appointed on election day (3 U.S.C. §5) . ”
