Taking 2 subject tests in one day?

I somehow can not find a straight answer to this question online. I understand that you can take one, two, or three subject tests in a day. How would I go about taking two in one day? I understand that you should be in your testing room at 8 am. But what about for a second test? Will they give you another room to go to? Like I just do not understand how it works. Sorry this makes like no sense, my mind is all over the place right now.

All subject tests are 1 hour long, and the test booklet they give you contains all of the tests. After one hour, there’s a small break, and you can either go home or stay for another test. Each test has a code that you put on the section of the answer sheet. So there’s just one room, one answer sheet, and one test booklet.

OHHHHHHHHHHH thank you @ski_racer

Lots of details here, too

https://collegereadiness.collegeboard.org/sat-subject-tests/taking-the-test/test-day

Thanks so much! Idk how I somehow completely neglected to find that webpage. Thanks again! @AroundHere

So there is no separate form to fill out? Do I tell the proctor when we are let into the test room?

I registered for Math 2 and plan to add US History on Saturday.

You just show up, and take the 3 tests. You will get a bill for the cost of the extra tests.

My son just sat the 10/6 SATII and told me they announced that you could take these tests in any order you wanted*, and that you could even sit more tests than you registered for - they’d just charge you for the extra(s) later on.

*NB: language/listening requires equipment so possibly may have a specific time slot. Not sure.

Language/listening can only be the first test. And since the original thread was hijacked, I’m now closing this.