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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
DVS 101082 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

Democracy Suite 5.5-C, Democracy Suite 5.5-D, Democracy Suite 5.17, Democracy Suite 5.5, Democracy Suite 5.5-B, Democracy Suite 5.5-A, and Democracy Suite 5.20

07-29-2025
DVS-101083 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

Democracy Suite 5.5-C

Democracy Suite 5.5-D

Democracy Suite 5.17

Democracy Suite 5.5

Democracy Suite 5.5-B

Democracy Suite 5.5-A

Democracy Suite 5.20

07-31-2025
DVS-101099 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

Democracy Suite (D-Suite) 5.5-A, 5.5-B, 5.5-C, 5.5-D, 5.17, 5.20

Products Affected: ICX Prime

 

09-03-2025
ECN 125 MicroVote General Corp. Pro V&V

Microvote EMS

04-29-2020
ECN 126 MicroVote General Corp. Pro V&V

MicroVote EMS 4.4

07-10-2020
ECN 128 MicroVote General Corp. Pro V&V

EMS V4.1 system

07-14-2020
ECN 129 MicroVote General Corp. Pro V&V

EMS 4.3-A

07-14-2020
ECN 129 MicroVote General Corp. Pro V&V

MicroVote EMS V4.3-A System

07-14-2020
ECN 130 MicroVote General Corp. Pro V&V

MicroVote EMS V4.41 System

09-18-2020
ECN-132 MicroVote General Corp. Pro V&V

EMS V4.4-IN and V4.41 VVSG V1.0 compliant voting systems. 

03-11-2021
ECN-134 MicroVote General Corp. Pro V&V

EMS V4.41 and EMS V4.4-IN

08-18-2021
ECN-135 MicroVote General Corp. Pro V&V

MicroVote EMS Systems

11-09-2021
ECO 01349 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Case

07-14-2020
ECO-01389 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

All Verity releases - circuit board component.

10-02-2020
ECO-01393 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

HP Z4 G4 Workstation and P244 Display

06-04-2020
ECO-01524 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Scan and Scan Relay on Verity 2.5 and Verity 2.6 

04-12-2022
ECO-01645 Hart InterCivic, Inc. SLI Compliance, a Division of Gaming Laboratories International, LLC

Verity Voting 2.7

03-12-2024
ECO-100669 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

ImageCast X Prime

04-20-2020
ECO-100694 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

ICC Scanner Station

05-08-2020
ECO-100706 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

ICP-2

09-30-2020
ECO-100718 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

D-Suite 5.5, 5,5-A, 5.5-B, 5.5-C

12-07-2020
ECO-100719 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

D-Suite 5.5, 5,5-A, 5.5-B, 5.5-C

12-07-2020
ECO-100720 Dominion Voting Systems Corp (This company was purchased by Liberty Vote USA Inc. ) Pro V&V

D-Suite 5.5, 5,5-A, 5.5-B, 5.5-C

12-07-2020
ECO-1125 Election Systems & Software, Inc (ES&S) Pro V&V

ExpressVote 1.0 

09-13-2021
ECO 22-1 Clear Ballot Group, Inc. Pro V&V

ClearVote 2.0 and 2.2

04-18-2022
ES&S - 1110 Election Systems & Software, Inc (ES&S) Pro V&V

DS850 on the following systems:

Federal: EVS 5000, EVS 5010, EVS 5200, EVS 5203, EVS 5204, EVS 5210, EVS 5211, EVS 5220, EVS 5230, EVS 5240, EVS 5400, EVS 5410, EVS 6000, EVS 6020, EVS 6021, EVS 6030, EVS 6040, EVS 6043, EVS 6100, EVS 6110, Unity 3400, EVS 4310, EVS 3414

State: EVS 6100, EVS 5110, EVS 5241, EVS 5300, EVS 5303, EVS 5310, EVS 5320, EVS 5321, EVS 5330, EVS 5340, EVS 5341, EVS 5501, EVS 5502, EVS 5602, EVS 6010, EVS 6041, EVS 6042, EVS 6050, EVS 6051, Unity 3301, Unity 3401, Unity 3411, FL EVS EVS 4530 Ver 2,  FL EVS 4520 Ver 1, FL EVS 6101

08-04-2021
ES&S - 1115 Election Systems & Software, Inc (ES&S) Pro V&V

Federal: EVS 5.2.0.0, EVS 5.2.1.0, EVS 5.2.2.0, EVS 5.2.4.0, Unity 3.0.1.0, Unity 3.0.1.1, Unity 3.4.1.0

11-16-2021
ES&S-1143 Election Systems & Software, Inc (ES&S) Pro V&V

EVS 6.2.0.0

11-21-2022
ES&S-1148 Election Systems & Software, Inc (ES&S) Pro V&V

EVS 6.0.6.0

01-11-2023
ES&S ECO 1141 Election Systems & Software, Inc (ES&S) Pro V&V

EVS 6.2.0.0, EVS 6.0.6.0

Windows 10, Windows Server 2016

06-08-2022