you have to build your enclosure first and then get DOC to come and ok it.
you start of with an A permit which allows a couple of types of geckos, if you want to get into them join the herp society, you can only get Geckos from another permit holder. Im in the process of building an enclosure at the moment before I try to get the first permit.
PM me if you want details of the local DOC guy that I got my info from, was really helpful