HALLOWEEN PARTY/CITY PERMITS

Okay, so I want to have a Halloween Party on the night of Halloween because I`m 19 and not really into trick-or-treating anymore. The problem is our neighbors...they`re always complaining about something. So, I want to do the party the right way. Does anybody know how to go about getting a "permit" from the city...how does it work??? I`ve been to parties where we had to sign our name, but I think that is for liability reasons. Can anybody help, I`m running out of time! THANKS!