<h1><span class="d-block text-secondary">The Once Only Hub.</span> Collaborate to build<span class="d-block">the first EU Data Space.</span></h1>
<p>The Once Only Technical System (OOTS) is the first EU cross-domain data space for secure government-to-government data exchange.</p>
<p>To make OOTS a reality, the European Commission established the Once Only Hub (OOHUB), a space for implementors where they can discover and access all the services provided by the European Commission to implement the Once Only Technical System.</p>
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