Test Subject/Center changes on the test day

<p>I originally registered for chemistry on December but i decided to take French w/ listening instead. i'm not 100% sure but i might change the test center as well. Would it be a problem if I change both at the same time and would it also be possible to change chemistry to a listening subject?? thank youu. ANDAND another question. I registered for one subject test on May but is it possible that i go on that day and just take two subjects??</p>

<p>Changing subjects isn't a problem. You don't need to notify anyone, but I think Listening tests are only offered in November.
On the other hand, changing the test center will cost you $21.
If you only paid for one subject, you can take additional tests, just make sure to tell the proctor. Collegeboard will bill you for the extra tests.</p>

<p>i forgot i posted this up. i just realized theres no listening test on december. stupid me : ( anyways, thank you!</p>