On this page, find guidelines for completing the Special Event for Profit License application online using the Georgia Tax Center. On this page, find guidelines for completing the Special Event Non-Profit License application online using the Georgia Tax Center.Explore the Atlanta events calendar for things to do today, this week or this weekend. Find upcoming festivals, seasonal events and more! Outdoor Festival permit applications are due 90 days before the start date of the event. Ages 8 and up welcome! Wear closed toed shoes and bring water. Applications must be complete and submitted 30 days prior to the date of the event. The Mayor's Office of Special Events (MOSE) permits all outdoor events in the city of Atlanta. The primary person of contact, application process, and applicable fees will vary depending on the type of event, desired location, and other event details.