ACA is organized along the lines of 12 steps and 12 traditions. Regarding how, when and where meetings are held and led, ACA works the same way as AA.
“The vast majority of ACAs meet informally, in school classrooms or church halls, in the evenings or over weekends. They are sympathetic to, but not part of, the AA movement. They meet in leaderless groups, pooling their resources of experience and insight, and reading relevant literature to deepen those assets. For an ACA, this support group provides the extended family and unconditional support which he or she never experienced. The group further provides practical help in acquiring everyday interpersonal and coping skills, and, with them, the sense of self-efficacy and community. Membership comes from a felt need, not as a life sentence. AA puts it simply: ‘People need people.'”
The Adult Children of Alcoholics movement: Help for the unseen victims of alcoholism. By: Carney, T.F., Guidance & Counseling, 08315493, May 91, Vol. 6, Issue 5
These are the fundamental guidelines of Adult Children of Alcoholics and Dysfunctional Families