Most colleges will do a freshmen orientation during the summer. You will meet with an academic advisor/counselor to create your fall semester schedule. Inform them that you intend to join ROTC. The reason this is important is multi-faceted.
1. Not every ROTC unit is the host unit
~ IOWS it means that although the school offers ROTC, it does not mean that they hold PT or LLAB on campus. You will have to travel to the host unit. You would be considered a xtown cadet. It has no impact on how the unit views you. It does have an impact on how to schedule classes. PT usually is O dark thirty...aka 6 a.m. You will be sweaty, and do you want to have an 8 a.m. class with a 9:30 after that before you can take a shower back in your dorm?
~~ Same is true regarding scheduling around LLAB. No sweaty issue, but you will need to make sure that your academic schedule deconflicts with LLAB.
2. ROTC will also give you college credits.
~ Some schools start charging more if you go above X credits. IE school says full time student is 12-18 credits. That is covered under their tuition. However, you go to 19 credits than they will charge a surcharge for tuition. Just throwing credit hr numbers to illustrate the pt.
~~ For some colleges ROTC credits can go towards your major/minor/core concentrate.
3. Certain ROTC programs require specific courses that the college may not require for your major.
~ DS was AFROTC a non-tech major scholarship recipient. The college did not require him to take foreign language for his major, but AFROTC did require it to commission, scholarship or not. The academic advisor knew this and plotted his college curriculum accordingly.
4. Your academic progression will be part of your ROTC career.
~ Every semester your ROTC CoC will make sure you are on track to graduate/commission on time.
I would connect with the ROTC unit and let them know you are coming with regards to your orientation date. I would also go for the 1st available orientation date you can attend. This is to make sure you can get the best time class schedules.
Hope that helps.