The electoral agency said that the campaign period will run between January 18, 2021 and February 15, 2021.
Mr Chebukati, however, gave a seven-day window period for any public officer who intends to contest in the by-election to resign.
The Independent Electoral and Boundaries Commission (IEBC) has set February 18, 2021 as the date for Nairobi gubernatorial by-election.
In a gazette notice, IEBC Chairman Wafula Chebukati directed political parties intending to participate in the by-election to submit the names of the persons contesting in party primaries and the dates of the nominations on or before December 28, 2020.
