I'm trying to figure out the process of what type of security clearance I would be apply for. I'm planning on enlisting into the army and going in on a ranger contract to attempt to join the 75th ranger regiment. I've heard that all military personal that need a secret just go through an NACLC for Secret clearence, or is it an MBI(Moderate Risk Background Investigation) or a Tier 4B with a background investigation? I'm not trying to hide or lie about anything just was curious as to what you actually get. Also what are written inquiries to schools and stuff like that?
Essentially what I’m asking is if it’s a: