Hi!
I can speak to AFJROTC only, but I would imagine the process to be similar. First...you're talking several years just to get it going.
I teach AFJROTC. I worked with an officer that did start a program at the high school in his town. It took almost five years for him to be able to get it approved by the school board, approved by the USAF, and then created. I'll try to be brief, although folks that know me say I never use 10 words when I can use 100. JROTC is governed by "10 U.S. Code § 2031.Junior Reserve Officers’ Training Corps." If you really want to read all of that... Here's the short version. When a school is identified and the service agrees to start a program, it will start under one of two programs: the JROTC Unit or the NDCC Unit. JROTC units are funded immediately by the service: all uniforms, texts, O&M costs, and such are supplied by HQ AFJROTC and HQ reimburses the school for 1/2 of the instructor salaries. Future funding is determined annually by the number of cadets in the program. NDCC units are fully funded by the school (all costs to include the full salaries of the instructors) and are not common, but they do exist. In my experience, NDCC units either fold in a year or two or are fully "upgraded" in that time.
Now...you've gotten all that done...what's next? You need classroom space (and all that includes: desks, etc.), inventory storage space, two instructors, and then students! That's the hardest part: recruiting students into JROTC. Title 10 requires that you have at least 10% of the ENTIRE student body enrolled in JROTC until your school exceeds 1,000 total students. At that point and regardless of how many students the school has, you must have at least 100 enrolled. And you must stay at or above that level every year. If you fall short, your unit will be placed on probation for viability. A couple of years like that and the service may close you. If they close a unit, it can't be reopened for a minimum of five years.
Okay...I said short...that's the bare minimum, shortest description I can give. Is it possible? Yes. Is it a quick thing? No. Can a student start it? Yes/No. It'll require the school administration to start the process with their school board, get buy-in from all parties, then a formal application to the service...and then the quest will begin. In the end, the service may say no.
Steve
USAFA ALO
USAFA '83