Intergroup Business Meeting. Explore NA and AA meeting formats with Changes Healing.A Suggested Format for Conducting an A.A. Meeting. 1. Good Evening ladies and gentlemen. This will show in the Notes field. Include room numbers, suite numbers, landmarks, etc. Address. In most groups, the chairperson or another officer calls the business meeting, which ordinarily is held on a monthly or quarterly basis. Some the Big Book and 12 Steps and Traditions. One of my groups use this format. Welcome to the business meeting for the (.