October 9
• Ballots begin mailing to active voters
• Drop boxes open across the city
October 12
• 22-day Colorado residency deadline
• Main Office vote center opens
October 19
• Phase 1 vote centers open across the city
October 26
• Last day to update your registration to receive a ballot by mail
• Last day to return your ballot by mail; return only to drop boxes
• Phase 2 vote centers open
October 30
• Phase 3 vote centers open
November 2
• All vote centers open
November 3
• Last day to vote—ballots must be received by 7 p.m.