Special Election

March 4, 2025 Election Calendar (updated on 1/2/2025)

NOTE: The information below is as accurate as possible, but not every requirement or exception is listed. In the event of a conflict, the date set by statute takes precedence over dates listed below. The San Mateo County Registration & Elections Division reserves the right to update this calendar as necessary.

Days Prior to Election Date Action Taken
91 Tuesday, December 3, 2024 Calling of Election
The Board of Supervisors of the County of San Mateo calls a Special Election to be held on March 4, 2025.
90

0
Wednesday, December 4, 2024

Tuesday, March 4, 2024
Contribution 24-Hour Reporting Period
During this period, a contribution, including a loan, that totals in the aggregate $1,000 or more per source made to or received by a candidate or committee must be reported within 24 hours.
GC §§82036, 84203
89 Thursday, December 5, 2024 County Notice of Measures
The County Elections Official will publish a notice regarding County, School District and Special District measures including date of election, purpose of election, hours of opening and closing the polls, and notice of central counting place. The County Elections Official will publish a notice regarding County, School and Special District measures of the dates for submitting Primary Arguments and Rebuttals and the 10-calendar-day public examination period.
EC §§9163, 9502, 10242, 12109 GC §6061
88 Friday, December 6, 2024 School District Measures
Last day for a school governing board to deliver a resolution (the "specifications of the election order") to the County Elections Official calling for an election on a measure.
ED §5322
88 Friday, December 6, 2024 Election Consolidation Deadline
Last day for a local entity to deliver a resolution requesting election services and consolidation from the County Board of Supervisors for the March 4, 2025 Election. A copy of the resolution of the governing board requesting the consolidation shall be submitted to the County Elections Official. A copy of the exact form of the question, proposition, or office to appear on the ballot must also be submitted.
EC §§1405, 10002, 10403(a)-(b)
88

78
Friday, December 6, 2024

Monday, December 16, 2024
Measure Document Public Examination Period
The 10-calendar-day public examination period begins December 6, 2024 at 5 p.m. and ends December 16, 2024 at 5 p.m. for all documents filed as of the filing deadline of December 6, 2024. Between these dates, the Elections Official or any voter of the jurisdiction in which the election is being held may seek a writ of mandate or injunction requiring any or all of the materials to be amended or deleted if found, by clear and convincing evidence, to be false, misleading or inconsistent with the Elections Code, where issuance of the writ or injunction will not substantially interfere with the printing or distribution of election materials as provided by law.
EC §§9190, 9295, 9380, 9509, 13313
84 Tuesday, December 10, 2024 Primary Arguments Due
Primary Arguments in favor of and against local measures are due by 5 p.m. on this date. Such arguments, if already submitted, may be changed until and including this day. Proponents/opponents of the measure shall provide a list of supporters/opponents for printing on the official ballot to the Elections Official when submitting primary arguments supporting/opposing the measure. The list of supporters/opponents must be taken from the signer or the text of the argument in favor of/in opposition to the measure. Arguments in favor of and against city measures must be filed with the City Clerk’s office. Contact the City Clerk’s office for deadline as cities may set different filing due date for Primary Arguments.
EC §§9162-63, 9170, 9282-83, 9286, 9315-16, 9501-03
84

74
Tuesday, December 10, 2024

Friday, December 20, 2024
Primary Arguments Public Examination Period
The 10-calendar-day examination review period begins December 10, 2024 at 5 p.m. and ends December 20, 2024 at 5 p.m. for Primary Arguments filed in favor of and against local measures. Between these dates, the Elections Official or any voter of the jurisdiction in which the election is being held may seek a writ of mandate or injunction requiring any or all of the materials to be amended or deleted if found to be false, misleading or inconsistent with the Elections Code. Arguments in favor of and against city measures are reviewed at the City Clerk’s office. Contact the City Clerk’s office for deadline.
EC §§9190, 9295, 9380, 9509
83 Wednesday, December 11, 2024 Measure Amendment/Withdrawal Deadline
Last day for an order of election calling for a ballot measure to be amended or withdrawn. A resolution of the legislative body that issued the order of election must be filed with the Elections Official by this date in order to amend or withdraw a ballot measure.
EC §9605
82 Thursday, December 12, 2024 Measure Letter Designation
The Elections Official will designate measure letters at 11 a.m. on this date.
EC §13116
78 Monday, December 16, 2024 Measure Documents Public Examination Period Closes
The 10-calendar-day public examination period ends at 5 p.m. for all documents filed by December 6, 2024. A writ of mandate or injunction request shall be filed no later than this date on documents filed by the Filing Period deadline of December 6, 2024.
EC §§9190, 9295, 9380, 9509, 13313
77 Tuesday, December 17, 2024 Rebuttal Arguments Due
Rebuttal Arguments for measures where a Primary Argument was filed both in favor and against are due on this date by 5 p.m. Such Rebuttal Arguments may be changed until and including this date. Rebuttal Arguments for city measures must be filed with the City Clerk's office. Contact the City Clerk’s office for deadline as cities may set different filing due dates for Rebuttal Arguments.
EC §§9163, 9167, 9285-86, 9316-17, 9502-9504
77 Tuesday, December 17, 2024 Impartial Analyses Due
Impartial Analyses for measures are due on this date by 5 p.m. Impartial Analyses for city measures must be filed with the City Clerk's office. Contact the City Clerk’s office for deadline as cities may set different filing due dates for Impartial Analyses.
EC §§9160, 9280, 9313-14, 9500
77

67
Tuesday, December 17, 2024

Friday, December 27, 2024
Rebuttal Arguments/Impartial Analyses Public Examination Period
The 10-calendar-day public examination period begins December 17, 2024 at 5 p.m. and ends December 27, 2024 at 5 p.m. for Rebuttal Arguments filed in favor or against local measures and for Impartial Analyses. Between these dates, the Elections Official or any voter of the jurisdiction in which the election is being held may seek a writ of mandate or injunction requiring any or all of the materials to be amended or deleted if found to be false, misleading or inconsistent with the Elections Code. Rebuttal Arguments and Impartial Analyses for city measures are reviewed at the City Clerk’s office. Contact the City Clerk’s office for deadline.
EC §§9190, 9295, 9380, 9509
74 Friday, December 20, 2024 Primary Arguments Public Examination Period Closes
The 10-calendar-day public examination period ends at 5 p.m. on this day for all Primary Arguments filed in favor of and against local measures. A writ of mandate or injunction request shall be filed no later than this date on documents filed by the deadline of December 10, 2024.
EC §§9190, 9295, 9380, 9509
67 Friday, December 27, 2024 Rebuttal Arguments/Impartial Analyses Public Examination Period Closes
The 10-calendar-day public examination period ends on this date at 5 p.m. for all Rebuttal Arguments filed in favor of and/or against local measures and Impartial Analyses. A writ of mandate or injunction request shall be filed no later than this date on documents filed by December 17, 2024.  
EC §§9190, 9295, 9380, 9509
60

45
Friday, January 3, 2025

Saturday, January 18, 2025
Sending Vote by Mail Ballots to Military and Overseas Voters
Between these dates, the County Elections Official must send ballots and balloting materials to all Military and Overseas Voters who filed ballot applications by January 18, 2025.
EC §§300(b), 3105, 3114
40 Thursday, January 23, 2025 First Pre-Election Statement Due
First pre-election campaign committee statement for candidates and committees is due for the period ending January 18, 2025 (which is 45 days before the election).
GC §§84200.5, 84200.8(a)
Fixed Date  Friday, January 31, 2025 FPPC Semiannual Filings
Except as provided in GC §84200 paragraphs (1), (2) and (3), elected officials, candidates, committees, and slate mailer organizations shall file semiannual statements no later than this date for the period ending December 31, 2024.
GC §§82013, 84200, 84218
29 Monday, February 3, 2025 Mailing of Vote by Mail Ballots
No later than this date, the County Elections Official shall begin mailing Vote by Mail ballots to all registered voters in the county.
EC §3000.5
29 Monday, February 3, 2025 Processing of Vote by Mail Ballots
Processing of Vote by Mail ballots may begin on this date. Processing Vote by Mail ballots includes opening Vote by Mail ballot return envelopes, removing ballots, duplicating any damaged ballots and preparing the ballots to be machine-read, or machine reading them, including processing write-in votes so that they can be tallied by the machine, but under no circumstances may a vote count be accessed or released until 8 p.m. on Election Day.
EC §15101
29 Monday, February 3, 2025 Early Vote Centers
Early voting period starts on this day, with two Vote Centers opening in San Mateo and Redwood City.
28

0
Tuesday, February 4, 2025

Tuesday, March 4, 2025
Ballot Dropoff Locations
Between these dates, at least one ballot dropoff location is provided for every 15,000 registered voters. At least one ballot dropoff location shall be located within the jurisdiction where the special election is held. All ballot dropoff locations shall be open at least during regular business hours. For a jurisdiction with fewer than 15,000 registered voters, at least one ballot dropoff location shall be provided.
EC §4005(b)(4)
21 Tuesday, February 11, 2025 Mailing of County Sample Ballot & Official Voter Information Pamphlets
By this date, the County Elections Official shall mail the County Sample Ballot & Official Voter Information Pamphlet to each voter who is registered at least 29 days prior to the election.
EC §§13303
14 Tuesday, February 18, 2025 Voter Registration Deadline
Voter registration closes on this date for the March 4, 2025 Special Election.  Voters must register by this date to be eligible to vote non-provisionally in this election. Voter registration forms postmarked prior to or on this date are accepted. (Note: Deadline falls on a holiday. Date is moved to the next day, February 18, 2025, per EC §15.)
EC §2102
13

0
Wednesday, February 19, 2025

Tuesday, March 4, 2025
Conditional Voter Registration
Between these dates, the Elections Official shall provide Conditional Voter Registration and provisional voting for voters who missed the February 18, 2025 registration deadline at any Vote Center.
EC §§2170-71
12 Thursday, February 20, 2025 Second Pre-Election Statement Due
Second pre-election campaign committee statement for candidates and committees is due for the period ending February 15, 2025 (which is 17 days before the election).
GC §§84200.5, 84200.8(a)
10

0
Saturday, February 22, 2025

Tuesday, March 4, 2025
10-Day Vote Centers
Between these dates, for a minimum of eight hours per day, at least one Vote Center is provided for every 60,000 registered voters. For a jurisdiction with fewer than 30,000 registered voters, the county elections official makes a reasonable effort to establish a Vote Center.  Any voter registered in the county may visit any Vote Center in order to receive voter services or vote.
EC §4005(b)(3)(A)
7 Tuesday, February 25, 2025 List of Vote Centers
By this date (one week before Election Day), the County Elections Official shall publish a list of the polling places (Vote Centers) designated for each election precinct for the election.
EC §12105
7 Tuesday, February 25, 2025 Deadline to Request Mailing of Replacement Vote by Mail Ballots
Voters interested in having replacement Vote by Mail ballots be mailed to them should make the request by this date to ensure the ballots arrive on or before Election Day.
0 Tuesday, March 4, 2025 Election Day
All Vote Centers open from 7 a.m. to 8 p.m. At least one Vote Center is provided for every 30,000 registered voters. If the jurisdiction is not wholly contained within the county, the county elections official shall make a reasonable effort to establish a Vote Center within the jurisdiction where the special election is held. Semifinal official canvass commences upon the closing of all polls at 8 p.m.
EC §§1000, 4005(b), 14212, 15150

 

Days
Following Election
Date Action Taken
7

Tuesday, March 11, 2025

Ballot Return Deadline
Vote by Mail ballots postmarked on or before Election Day must be received by the County Elections Official by this date in order to be counted.
EC §3020(b)
30

Thursday, April 3, 2025

County Election Certification
Last day for County Elections Official to certify election results to the jurisdictions participating in the election.     
EC §15372

Reference
§ or §§: Section or Sections
EC: California Elections Code
ED: California Education Code
GC: California Government Code

All above California Codes may be referenced online at: leginfo.legislature.ca.gov/faces/codes.xhtml