Casual. Jeans are fine. You will be trying on shoes, uniforms, etc. Something comfortable and easy on / off. Depending on when you go out should take about 3 hours. Bring a black pen. It is also the start of " yes sir / no sir".
They give you all the forms. Some you fill out there and some you take home to be filled out and brought back on Tuesday. The only form in the letter is the beneficiary form, which they give you on the admin day anyway (multiple times).
Biggest thing seems to be bring two forms of ID - drivers license and passport (or whatever you used for verification ). Dress is business casual, no jewelry - you'll have to remove it for id photos. Clean shaven, hair off of the collar. And bring a black pen.
I think it's 150 for both, but I have no confirmation of that. I'm going on the size of previous classes there is always an article in the FDNY website about graduation and if u go back far enough u can see how many graduated.
List number doesn't mean that the number of people in front of you...