<p>If your ACT is better than your SAT, then they will use your ACT score.</p>
<p>From the UC Davis General Catalog (<a href="http://registrar.ucdavis.edu/UCDWebCatalog/admission/freshman.html%5B/url%5D">http://registrar.ucdavis.edu/UCDWebCatalog/admission/freshman.html</a>)</p>
<p>"If you take both the SAT Reasoning Test and the ACT Assessment, we will use the test that gives you the higher score in our admissions decision."</p>