Voting Systems & Equipment

As of June 13, 2019, this page was still under construction. In the next few days, we hope to have all our past reports, press releases, and other documentation grouped together on this page by voting system. We hope this will allow our readers to locate more easily information about particular types or brands of equipment in use, or being proposed for use, in their locality.

We want to caution the reader, however, that voting systems vary greatly from state to state, depending on certification requirements, updates to equipment, and other factors. For example, Florida does its own testing and certification of voting equipment; Federal qualification is not a prerequisite for certification in Florida.

ES&S iVotronic

In the 2006 general election, problems with the state’s most widely used touchscreen voting machine–the ES&S iVotronic–ultimately led in-coming Governor Charlie Crist to make it his first priority to mandate the use of optically scanned paper ballots throughout the state.

Sarasota’s Vanished Votes: An Investigation into the Cause of Uncounted Votes in the Congressional District 13 Race in Sarasota County, Florida (January 2008)

LostVotes in Florida’s 2006 General Election: A Look at Extraordinary Undervote Rates on the ES&S iVotronic,_Part_1 (2007)

LostVotes in Florida’s 2006 Election: An Investigation into Excessive Undervote Rates on the iVotronic in the Attorney General’s Race,_Part_2 )January 2008)

Assessing Voting System Accuracy (December 2008)

ES&S Digital Scanner 200 (DS200)

In 2007, FFEC research director, Mary (Kitty) Garber predicted that without modifications, a poorly designed overvote feature on the new scanner would likely result in many more lost votes due to overvoting–a common voter error that the feature is designed to prevent.¬† The feature was not modified, and in 2008, Garber’s fears were realized. In Miami-Dade, Florida’s most populous county, Garber found the feature had disproportionately affected minority voters. Garber’s research was later used by the Brennan Center for Law and Justice, as well as election integrity activists in Wisconsin, to push for changes to the feature before certification in other states.

Why the New ES&S Digital Scanner Should Not Be Certified

Report of Findings, Ballot Inspection, Precinct 248, Miami-Dade’s 2008 Presidential Election¬†

Overvoting in Miami-Dade’s 2008 Presidential Election: Factsheet

An Examination of Overvoting in Majority-Minority Precincts, St. Lucie County, Florida, in the 2008 Presidential Election

Examining Florida’s High Invalid Vote Rate in the 2008 General Election: How Voting System Design Flaws Led to Lost Votes, published June 2009

Blended Systems–Optical Scanners & DREs (Touchscreens)

Review of Audit Logs, 11-02-2010 Osceola

State Will Certify AutoMark–Just Not in Time for Anyone to Buy It

Preliminary Report Volusia Sept 5 2006 primary

Tale of the Tapes



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