WEC Approves Election Systems and Software EVS and EVS Electronic Voting Systems


Information Only



Wisconsin County Clerks
Wisconsin Municipal Clerks
City of Milwaukee Election Commission
Milwaukee County Election Commission


Meagan Wolfe, Administrator


On June 11, 2019, the Wisconsin Elections Commission (“Commission”) approved Election Systems and Software (ES&S) EVS and EVS voting systems for sale and use in the State of Wisconsin.  

As a condition of approval, the Commission determined any municipality using a ballot marking device approved as part of EVS or EVS, must include ballots marked by that device as part of the pre-audited group of ballots used to conduct its pre-election logic and accuracy voting equipment test, under Wis. Stat. § 5.84(1).  While the inclusion of ballots marked by a device in the pre-election logic and accuracy test has always been a best practice recommendation, the Commission specifically required those ballots be included when EVS or EVS are used at an election.  

No electronic voting equipment may be offered for sale or utilized in Wisconsin unless the Commission first approves it.  The following provides a brief description of the ES&S voting systems recently approved for use in Wisconsin:

A.    EVS

EVS is a federally tested and certified paper based, digital scan voting system powered by the ElectionWare software platform.  It consists of seven major components: an election management system (EMS) server; an EMS client (desktop and/or laptop computer) with election reporting manager (ERM) software; the ExpressVote, an Americans with Disabilities Act compliant vote capture device for a polling place; the AutoMARK, an Americans with Disabilities Act compliant ballot marking device for a polling place; the DS200, a polling place scanner and tabulator; the DS450, a mid-range scanner and tabulator for a central count location; and the DS850, a high-speed scanner and tabulator for a central count location.   

B.    EVS

EVS is a federally-tested modification to the EVS voting system.  The modification provides support for modeming of unofficial election results from a DS200 to a Secure File Transfer Protocol (SFTP) server through public analog or wireless telecommunications networks after the polls close on Election Day.   

The modeming component of EVS lacks federal certification but has undergone successful functional testing on the state level.  The underlying voting system (EVS is federally certified. 

For additional information regarding this voting system, please refer to the attached Commission memorandum, certification letter and U.S. Election Assistance Commission certificate.  If you have any questions, please contact the Help Desk at [email protected] or (608) 261-2028.  Thank you.