The last day to accept in-person registrations for the February 14th, 2017 9th City Council District Special Election is Saturday, February 4, 2017 9am-9pm at the borough office located at 200 Varick Street, 10th Floor, NYC 10004

The last day to postmark registrations for the special election is January 20, 2017 and must be received by January 25, 2017.
Any change of Address for the Special Election must be received by January 25, 2017.
Last Day the Board of Elections could have accepted a “Change of Party Enrollment” for the Special Election was October 14, 2016
(Note: The information contained herein subject to change.)

Information from http://vote.nyc.ny.us/html/dates/dates.shtml.