erences to the relevant tests.
            </p>
            <section>
                <h3 id="exit-criteria-rs">Exit criteria</h3>

                <p>
                  The <a href="https://www.w3.org/TR/epub-rs-33/">EPUB 3.3 Reading System</a> document must have at least two passing, independent implementations for <a href="https://w3c.github.io/epub-tests/">each test</a> linked to a <em style="font-variant: small-caps;">must</em> statement in the specification.
                </p>
                <p>   