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March 2, 2021 Timeline Calendar

Sonoma County Voting

Special Election

Start DateDeadlineEvent
12/2/2020  Within 24 Hours 24 Hour Campaign Finance Reporting Period ($1,000 or more)
 12/4/2020 Consolidation deadline, measures
 12/4/2020 Tax rate statements deadline, bond measures
12/7/2020 Measure letter assignment
 12/9/2020 Deadline to amend/withdraw measure
 12/11/2020 Argument deadline
 12/11/2020 Impartial analysis due
 12/18/2020 Rebuttal deadline
(only if opposing arguments are filed)
1/1/2021 Military/Overseas 60 Day Ballots
 1/21/2021Deadline for 1st Pre-Election Campaign Finance Statement (1/1/2021 through 1/16/2021)
1/21/2021 First day County Voter Information Guides may be mailed
2/1/2021 Voting by mail opens (VBM)
 2/14/20213/2/2021 County of Sonoma 24-Hour Campaign Finance Reporting Period ($500 or more) 
 2/15/2021*Regular Registration deadline
 2/17/2021 3/2/2021Conditional (a.k.a. late) voter registration 
2/16/2021 First day to process vote by mail ballots
  2/18/2021 Deadline for 2nd Pre-Election Campaign Finance Statement (1/17/2021 through 2/13/2021)
 2/23/2021Deadline to request VBM ballots by mail
3/2/2021 Election Day (7a.m. to 8p.m.)
 3/5/2021Last day to receive VBM ballot postmarked
no later than 3/2/2020
 4/1/2021Deadline to certify election results

*For these dates that fall on a Saturday, Sunday or holiday, use the next regular business day for transactions. County holidays during this period include: December 25, 2020 (Christmas Day); January 1, 2021 (New Year’s Day); January 18, 2021 (Martin Luther King Jr. Day); February 12, 2021 (Lincoln’s Birthday); February 15, 2021 (Presidents’ Day); March 31, 2021 (César Chávez Day).