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    Sonoma County Announces Plan to Change Voting System

Sonoma County Voting System

Setting Up the new Equipment Hardware

New Equipment hardware is set up and powered on to inspect functioning. Next, the software is carefully tested to ensure all components work properly. This process, known as “Acceptance Testing,” is a required and final part of the purchase process.

Voting System Acceptance Testing 1

Voting System Acceptance Testing #2

Voting System Acceptance Testing #5

Voting System Acceptance Testing #6

Voting System Acceptance Testing #4

Acceptance Testing

Staff conduct Acceptance Testing on the ballot tally equipment. Staff use test ballots with known results to test voting system hardware and ballot tally software. Ballots are scanned to create identical images; next, ballot images are inspected for readiness to be tallied.

Voting System Scanning Test #1

Voting System Scanning Test #2

Ballot Inspection

The ballot inspection process will uncover problems with voter ballots. If a ballot is damaged or a voter makes ambiguous or extraneous marks that could interfere with accurate tallying, California law allows staff to create a duplicate ballot. The new voting system’s technology uses ballot images to confirm a voter’s choices before the ballot is tallied. This new process called “Adjudication,” replaces the old voting system’s time-consuming manual process to remake duplicate ballots (it was common for staff to remake thousands of ballots!).

Voting System Adjudication #1

Voting System Adjudication #2

Poll Worker Training

Poll Workers are trained on new voting system. Election Day, March 5, 2019, will mark the debut of the new voting system in Sonoma County.

VS Poll Worker Training #1

VS Poll Worker Training #2

VS Poll Worker Training #3

Contact Information

Deva Marie Proto

County Clerk-Recorder-Assessor-Registrar of Voters

Business Hours
Monday – Friday
8:00 AM – 5:00 PM

Registrar of Voters

435 Fiscal Drive
Santa Rosa, CA 95403
38.4657357, -122.7251823
Mailing Address
PO Box 11485
Santa Rosa, CA 95406-1485

Voting System Survey

The Survey is Now Closed

VoteResidents of Sonoma County were invited to respond to a survey and provide feedback about their experience with the current voting system, and provide opinions on the most important criteria to consider when evaluating and selecting a new voting system.

Voting System Resources

California Voting Systems

Official State of California Seal

Voting systems must be certified by the Secretary of State to be used in California