Information taken from ErieCountyGov.org and this link

GENERAL ELECTION ….………………………………………….. November 6
First day to REGISTER after November election ……………………… November 7
Last day for County Board of Elections to receive voted military and…… November 13
overseas absentee ballots (must be postmarked no later than November 5)
Note: All dates in this calendar are subject to change without notice.