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<h2>Once-Only Technical System Projectathons</h2>
<p class="p-spacing">Since 2023, the Commission has been organising Once-Only Technical System Projectathons. These are three-day events where national teams connect various systems and perform a marathon of peer-to-peer interoperability and compliance tests in a structured environment.</p>
<p>Discover more details about Projectathons and explore the steps you need to take to actively participate in the upcoming Projectathons.</p>
<p><a class="btn ghost" href="https://ec.europa.eu/digital-building-blocks/sites/display/OOTS/Projectathons"><span>Go to Projectathons</span><span class="ico-cta-forward"></span></a></p>
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<h3>Projectathon #4</h3>  
<!--<p class="label upcoming">Upcoming</p>-->
<p   class="label past">Past</p> 
<p>In 2024, the Commission will organise two thematic Projectathons. The May 2024 Projectathon will focus on Education and Population data, and on linking the Once-Only Technical System with related systems such as EMREX.</p>
<p class="card-upcoming-date">15 - 17 May 2024</p>
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<a class="btn primaryghost" href="https://ec.europa.eu/digital-building-blocks/sites/display/OOTS/Projectathon4"><span>Go to Projectathon #4</span><span class="ico-cta-forward"></span></a>
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<h3>Projectathon #3</h3>  
<p class="label past">Past</p>   
<p>The October Projectathon is the final such event in 2023, just ahead of the legal deadline for EU Member States to implement the Once-Only Technical System. It builds on the work and experiences of the April and June Projectathons.</p>
<p class="card-upcoming-date">18 - 20 October 2023</p>
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<a class="btn ghost" href="https://ec.europa.eu/digital-building-blocks/sites/display/OOTS/Projectathon3"><span>Go to Projectathon #3</span><span class="ico-cta-forward"></span></a>
<!--<p class="label available-soon">Available soon</p>--> 
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