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Engineering Change Orders

Tuesday, December 23, 2025
An engineering change order (ECO) is a change to a previously EAC-certified voting system’s hardware, documentation, or data that is minor in nature and effect. ECOs require voting system test laboratory review and endorsement as well as EAC approval. Any proposed change that is not deemed to be a minimal change is a modification and must be submitted for testing and review consistent with the EAC Testing and Certification Program requirements.

Engineering Change Orders

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Manufacturer

ECO Manufacturer Testing Lab Impacted Device/System Date Approved
HRT-01679 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Voting 2.7

 04-29-2025
HRT-01695 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Vanguard 1.0

 09-03-2025
HRT-01720 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Vanguard 1.0 Manual Application Hash Validation Process Document (Vanguard Manual Application Hash Validation 1000828 A01)

 11-14-2025
HRT-01743 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Vanguard 1.0

 01-13-2026
HW-1086 Clear Ballot Group, Inc. Pro V&V

ClearAccess component (ClearCount 2.0)

 03-18-2020
HW-4211 Clear Ballot Group, Inc. Pro V&V

ClearVote 2.0, ClearVote 2.1, ClearCount 1.6

 02-19-2021
HW-873 Clear Ballot Group, Inc. Pro V&V

ClearCount and ClearDesign (ClearVote 2.0)

 01-31-2020
HW-879 Clear Ballot Group, Inc. Pro V&V

ClearCount Scanner (ClearVote 2.0)

 03-23-2020
HW-880 Clear Ballot Group, Inc. Pro V&V

ClearCount 2.0 (ClearAccess component)

 03-23-2020
MVT-136 MicroVote General Corp. Pro V&V

MicroVote EMS (Infinity and VVPAT components)

MicroVote EMS 4.0, 4.0B, 4.1, 4.2, 4.3-A, 4.4, and 4.41 systems

 03-30-2023
MVT-137 MicroVote General Corp. Pro V&V

MicroVote EMS (All-In-One Voting Station booth)

MicroVote EMS 4.0, 4.0B, 4.1, 4.2, 4.3-A, 4.4, and 4.41 systems

 03-30-2023
MVT-138 MicroVote General Corp. Pro V&V

Impacted Device:

Dell Latitude 3520, Dell Latitude 3540

Impacted System:

MicroVote EMS V4.41

 11-22-2023
MVT-139 MicroVote General Corp. Pro V&V

All EMS Versions:

 - MicroVote EMS 4.0

 - MicroVote EMS 4.0-B

 - MicroVote EMS 4.1

 - MicroVote EMS 4.2

 - MicroVote EMS 4.3-A

 - MicroVote EMS 4.4

 - MicroVote EMS 4.41

 08-14-2024
MVT-140 MicroVote General Corp. Pro V&V

Impacted Device:

Dell Latitude 3540, Dell Latitude 3550



Impacted System:

MicroVote EMS 4.41

 09-10-2025
SW-7679 Clear Ballot Group, Inc. Pro V&V

ClearVote 1.5, 2.0

 08-27-2020
SW7679 Clear Ballot Group, Inc.

ClearVote 1.5, 2.0, and 2.1 (ClearDesign, ClearAccess, and ClearCount components

 08-27-2020
Unisyn ECO 1031 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

OpenElect 2.2 

 04-11-2025
UNS-1001 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Made changes to the following parts: 512 MB DDR Memory Module, 80 GB Hard Drive, and USB Flash Drive: DDR Memory Module andHard Drive wer added to the approved list because of being more readily available currently. Flash drive more ESD resistant case was added.

 05-17-2010
UNS 1025 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

OpenElect 2.2 

 02-24-2022
UNS 1026 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

OpenElect 2.2 - Freedom Vote Scan

 02-24-2022
UNS 1027 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

OpenElect Freedom Vote Scan

 07-26-2022
UNS-1028 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

FVS

OpenElect 2.2

OpenElect 2.2.3

 07-06-2023
UNS 1029 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

FreedomVote Scan (FVS) using OpenElect 2.2 and 2.2.3

 07-20-2023
UNS 1030 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc) Pro V&V

FreedomVote Scan with OpenElect 2.2. and 2.3

 09-26-2023
UNS-16842 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Removed "EAC APPROVED" and moved "UNISYN" logo to center on OVO and OVI label.

 05-24-2010
UNS-16844 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Make changes to BOM and riase Rev. from A to B. The replacement motherboard had been granted a CE Declaration of Conformity for testing that was comparable to that required by the EAC 2005 VVSG.

 08-22-2011
UNS-16847 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Updated AC distribution cable

 05-24-2010
UNS-16855 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Printer, Star TSP743II-24, Serial Interface, Gray, OVI - new flash ROM supplier forced a change to the mainboard and a change to the firmware.

 11-30-2010
UNS-16856 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

OVI label change

 11-30-2010
UNS-16857 Unisyn Voting Solutions (a division of International Lottery and Totalizator, Inc)

Network seal, plate printer mount, bottom chassis, bracket lock/seal cover, hinge chassis - to alleviate interferences and to accomplish an overall better intercomponent fit and easy of assembly.

 11-30-2010