In Maine, CASA volunteers are guardians ad litem. CASA guardians ad litem have the exact same role and responsibilities as attorney guardians ad litem. Therefore, CASA guardians ad litem must abide by the Maine Rules for Guardians ad Litem.
You can find the Maine Rules by clicking here.
On October 1, 2016, the Maine Supreme Judicial Court issued amendments to the Maine Rules. You can find the amendments here.