Sources:
<ul><li>Counties which use Dominion and Clear Ballot equipment: <a rel="nofollow" class="external free" href="https://verifiedvoting.org/verifier">https://verifiedvoting.org/verifier</a></li>
<li>ES&amp;S DS850 central scanner automatically saves images, according FL court case, p.129 "all digital ballot images get saved to the internal one terabyte hard drive regardless of what selection was made in the EMS system." <a rel="nofollow" class="external free" href="http://votewell.net/fl080720.pdf">http://votewell.net/fl080720.pdf</a> DS450 and DS950 are similar models, differing in speed &amp; sorting bins.</li>
<li><b>AZ</b> SOS procedures 12/20/2019, page 262: <a rel="nofollow" class="external free" href="https://azsos.gov/sites/default/files/2019_ELECTIONS_PROCEDURES_MANUAL_APPROVED.pdf">https://azsos.gov/sites/default/files/2019_ELECTIONS_PROCEDURES_MANUAL_APPROVED.pdf</a></li>
<li><b>CA</b> SOS requirement 6/8/2020, page 4: <a rel="nofollow" class="external free" href="https://elections.cdn.sos.ca.gov/ccrov/pdf/2020/june/20108sl.pdf">https://elections.cdn.sos.ca.gov/ccrov/pdf/2020/june/20108sl.pdf</a> updated by new SOS 5/19/2021, page 2: <a rel="nofollow" class="external free" href="https://elections.cdn.sos.ca.gov/ccrov/2021/may/21059sl.pdf">https://elections.cdn.sos.ca.gov/ccrov/2021/may/21059sl.pdf</a></li>
<li><b>CO</b> all 10/23/2020, from <a rel="nofollow" class="external free" href="http://electionquality.com/">http://electionquality.com/</a></li>
<li><b>FL</b> counties 9/4/2020, from <a rel="nofollow" class="external free" href="https://www.ffec.org/">https://www.ffec.org/</a></li>
<li><b>GA</b> SB202 3/25/2021 makes images public records, p.98, §51 <a rel="nofollow" class="external free" href="https://www.legis.ga.gov/api/legislation/document/20212022/201498">https://www.legis.ga.gov/api/legislation/document/20212022/201498</a></li>
<li><b>MA</b> SOS email 9/24/2020: "The approval of digital scan equipment in Massachusetts specifically prohibits the capturing of ballot images. ~Michelle K. Tassinari, Director and Legal Counsel, Elections Division" <a rel="nofollow" class="external free" href="https://apnews.com/article/fact-checking-afs:Content:9472752830">https://apnews.com/article/fact-checking-afs:Content:9472752830</a></li>
<li><b>MD</b> 2020 Administrator's Report <a rel="nofollow" class="external free" href="https://www.elections.maryland.gov/about/meeting_materials/July_23_2020.pdf">https://www.elections.maryland.gov/about/meeting_materials/July_23_2020.pdf</a></li>
<li><b>MI</b> MI SOS has counties preserve images only of write-ins (pp.7,28), to save 2-5 seconds per ballot in precinct scanning (p.5): <a rel="nofollow" class="external free" href="https://www.michigan.gov/documents/sos/DominionBid_549578_7.pdf">https://www.michigan.gov/documents/sos/DominionBid_549578_7.pdf</a></li>
<li><b>PA</b> SOS directive 6/9/2011, section 12: <a rel="nofollow" class="external free" href="https://www.dos.pa.gov/VotingElections/Documents/Voting%20Systems/Directives/EVS%20Usage%20Directive.pdf">https://www.dos.pa.gov/VotingElections/Documents/Voting%20Systems/Directives/EVS%20Usage%20Directive.pdf</a></li>
<li><b>SC</b> Law 7-13-1330(M) (added by <a rel="nofollow" class="external text" href="https://www.scstatehouse.gov/sess124_2021-2022/bills/108.htm">Act 150</a> signed 5/13/2022) "An optical scan voting system must maintain an image of each ballot that is cast in a manner that protects the integrity of the data and the anonymity of each voter."</li>
<li><b>TX</b> SOS requirement 10/23/2019, section 12: <a rel="nofollow" class="external free" href="https://www.sos.state.tx.us/elections/laws/advisory2019-23.shtml#section12">https://www.sos.state.tx.us/elections/laws/advisory2019-23.shtml#section12</a></li>
<li><b>VA</b> Virginia Dept. of Elections Commissioner <a rel="nofollow" class="external text" href="https://www.elections.virginia.gov/contact-us/commissioner/index.html">Christopher Piper</a> 10/19/2020 in radio interview at 47:00, on "HearSay with Cathy Lewis," <a class="external text" href="https://en.wikipedia.org/wiki/WHRV">WHRV</a> National Public Radio affiliate, Norfolk, VA, "We are required to maintain the ballot images, so, for 22 months. So essentially, every time a ballot's run through a machine it's captured and the digital image is preserved by federal law for 22 months. The release of those images does take some requesting."  <a rel="nofollow" class="external free" href="https://mediaplayer.whro.org/program/hearsay/e/hearsay-monday-october-19th-2020">https://mediaplayer.whro.org/program/hearsay/e/hearsay-monday-october-19th-2020</a></li>
<li><b>VT</b> SOS statement 8/31/2021 for ballot images from audit in 7 towns (there are no other ballot images): <a rel="nofollow" class="external text" href="http://votewell.net/vt2021.htm">keep for 22 months</a>, as public records. Sample of towns changes each election.</li></ul>
There are <b>other maps</b> showing <a href="//commons.wikimedia.org/wiki/File:Ballot-foia.png" title="File:Ballot-foia.png">Public availability of these ballot images</a> and <a href="//commons.wikimedia.org/wiki/File:State_audits.png" title="File:State audits.png">Types of election audits</a>, by state.
<a href="//commons.wikimedia.org/wiki/User:Numbersinstitute" title="User:Numbersinstitute">Numbersinstitute</a>
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