# L\&A Overview

Logic & accuracy testing (L\&A) is meant to ensure that every component of the voting system is operating as expected and has been configured properly for a specific election. Testing rules vary by jurisdiction and/or state. The following functions may be useful as tests are conducted.

### VxAdmin Tally Report 

Before starting the testing process, using an Election Manager Card, confirm VxAdmin does not have CVRs loaded. Select Reports from the side menu and select *`Full Election Tally Report`* to print a "zero" report.

<figure><img src="/files/yUs8TCThxMKnID3H4Lx8" alt="" width="267"><figcaption></figcaption></figure>

### Test Ballot v. Official Ballot Mode&#x20;

VxScan and VxCentralScan can be placed into Test Ballot Mode to only accept test ballots. If official ballots are used for testing, *`Official Ballot Mode`* should be used. VxScan and VxCentralScan default to test mode after configuration.

In VxScan, insert an Election Manager Card, select Configuration from the side menu, and select the correct mode.&#x20;

<figure><img src="/files/qJVtDIwQx8UDyiVO7ETA" alt="" width="266"><figcaption></figcaption></figure>

In VxCentralScan, insert an Election Manager Card, select Settings from the side menu, and select  *`Toggle to Official Ballot Mode`*.&#x20;

<figure><img src="/files/bE23uZtQ5pSMkiuaNJ5H" alt="" width="266"><figcaption></figcaption></figure>


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