To actually answer RENEGADE's question, I don't know about NROTC but for OCS you fill out a form explaining your usage and then sign a statement declaring that drugs are bad and you'll never use them again. FYI: if you smoked an ounce a week for the first two years of college, that's a tad more than experimentation. One guy at our OPO tried that when I worked there. Anway, I'm sure ROTC will do something similiar. As for being honest, you'll get PT's for that, but will it detract from the overall strength of your app...what do you think? Again, this is OCS recruiting but I've seen people sign drug statements and get accepted. I imagine it's possible for ROTC, but you won't know until you try. I've met more than a few people who're of the mindset that "what they don't know can't hurt me", so you might be in good company if you choose to omit it. I've also met scores of people who take the honor, courage, commitment philosphy dead serious. The senior officers you'll report too the entire time you're in uniform will always fall into this latter group. I'd give this a lot of thought if I were you.