There are over 60+ departments who come together to help make Anime Expo possible, ranging from Maid Cafe to Access Control to Video Media Management and more.
Generally, department managers recruit specifically for the AX Volunteer program. Attendee Volunteers can be assigned to a wide variety of departments and tasks over the course of the convention. However, if an Attendee Volunteer has the permission of the department's manager, they can request to be assigned to a specific department.
A list of volunteer departments can be found here: