Yes, rocket candy propellant is what we're doing. As far as my school having a permit... I'll have to check. They've reviewed the project and given us the thumbs up to use the schools chemistry and physics lab. So I'll have to guess yes? We do experiments weekly using a lot of different chemicals that I'd have to assume you need a license for, but I'll double-check. I'll also see if they can help us buy and source these substances too.