Voting System Information

  • The voting system used in Clark County is Election Systems & Software’s EVS 2.0.2.
  • All voters in Clark County vote on paper ballots. This means that voted ballots can be retabulated
    if there is a need to do so.
  • Clark County’s voting system has ballot scanners and devices for voters with disabilities to mark
    ballots privately and independently.

    • Each ballot scanner has a removable memory device. This memory device stores
      individual and accumulated results.
    • The ballot marking device does not store or count votes. It simply marks the ballot.
  • Clark County’s voting system has been rigorously tested by a federally accredited testing
    laboratory and certified by the U.S. Election Assistance Commission. The certification program
    tests a voting system against federal performance and security standards.
  • No part of the certified voting system is connected to the Internet.
    • Ballot scanners are never connected to the Internet.
    • Ballot marking devices are never connected to the Internet.
    • Election results are never sent via modem over telephone lines.
  • Results released on election night are not official election results. The day after the election, all
    memory devices are re-uploaded. This process starts the official election results process.

Duties and Responsibilities of Election Officials

  • Election officials test each ballot scanner before each election. They scan a test deck with prevoted
    unofficial ballots and compare the results against expected results. If the results match,
    the unit can be used.
  • After testing, the results are deleted then election officials seal each ballot scanner and store it
    in a secure location until it is securely moved to a voting location. Each scanner is sealed until it
    is ready to use.
  • The Clark County Board of Elections has contingency plans if the ballot scanner cannot be used.
    Each ballot scanner has a locked and secure place to store voted ballots that cannot be scanned
    because the ballot scanner is not working.

Security Best Practices

  • All local election officials receive regular security training.
  • Only those election officials that need network access have access.
  • All employees with network access have had background checks.
  • All administrative functions in the network and ballot scanners are logged.
  • Data stored on the memory devices are encrypted.
  • Memory devices are assigned to a specific ballot scanner. If the ballot scanner detects a
    different memory device, the ballot scanner will not accept ballots.