<p>This is really strange.</p>
<p>On Caltech's financial aid website and under the international student portion, it does not ask for IDOC. But on the IDOC website, it says that Caltech requires IDOC.</p>
<p>So which one should I believe? Likewise, what happens when the deadlines for documents to be received at IDOC is different between the university and IDOC? Which one should I believe?</p>
<p>The IDOC is an add-on to the CSS. Very shortly after you complete your CSS, you will get a request from IDOC to verify the information. It is a royal pain, but it doesn’t cost any more. You send your stuff (hard-copy) to IDOC and they apply it to all the schools that want it. According to our documentation on our completed IDOC, the information will go to Caltech and three other schools he applied for.</p>
<p>As far as deadlines, we finished ASAP just to make sure!</p>