Be prepared to be treated like you're visiting prison for the day. I've taken many tests over my life because I have an advanced degree, I have never been treated so poorly. The center was cold and drafty no jackets were allowed. It was 17 degrees the day I took my test and the center was cold actually the entire building was cold.
I was wanded by a metal detector. When I began the test I wrote all of my formulas on the scrap paper. When that ran out, I asked for more and the man insisted on taking away my scrap paper!
During my 4 hour test I was not allowed to eat drink or even have hard candy. Completely absurd! Do yourself a favor and go somewhere else to take your test!