<p>Gradewise or classwise, when are these tests administered? Also, what if my school does not administer these tests and I would like to take them?</p>
<ol>
<li><p>Depends on the school. I'm assuming you mean time of the day.</p></li>
<li><p>I think you can register by yourself.</p></li>
</ol>
<p>So if my school does not offer, I can take at another that does?</p>
<p>My school asks all who wish to take the AMC 12 to just go to the cafeteria in the morning of the day that it's administered (sometime in february i believe?) And if you qualify for the AIME you take it like 4 weeks later in the morning, at least in my school. We had one of the top scorers for the AIME who qualified for the USAMO (is that the next one?) I personally got like 2 or 3 on the AIME and was proud haha.</p>
<p>You need a contest coordinator to proctor the test; presumably they must also be the one to order it. You'll probably need to find a willing teacher and convince them to do it for you (and anyone else that is interested).</p>
<p>Contest dates are at <a href="http://www.unl.edu/amc%5B/url%5D">http://www.unl.edu/amc</a>. The exam must be given a specific day (there are two different forms, given on two days; you can take either or both), but I think the coordinator can choose the time of day. We always did it in the morning.</p>
<p>Indeed, you must qualify for the AIME by scoring well on the AMC 10/12. If you score well on the AIME, you take the USAMO, and beyond USAMO is MOSP and the IMO.</p>