Service work starts in your homegroup, usually by washing cups, picking up a tea towel or stacking chairs at the end of a meeting. After a while you find yourself arriving early and helping with the set-up or you may take on a comittment to your group by taking the key and the job of group secretary. You then turn up first every week, making sure the room is set, there is enough of everything for people to have a 'cuppa' and a biscuit and to ask different homegroup members to chair the meeting each week. The Secretary also calls the group conscience meetings, usually once a month at a set time.
The group treasurer collects the money, keeps a written record with receipts, pays the rent, buys Literature, buys the coffee & tea etc. and disburses excess funds through the Group Donation plan.
The service structure of AA places Groups at the top. If your group is in an active District you can elect a GSR (group service representative) to go to District meetings. The DCMs (district committee members) go to Area meetings. Each Area sends a Delegate to the General Service Conference in Sydney each year.