Government does not license appraisers. Professional appraisal associations create classes and certification exams to assure professional standards for appraisers. The three most widely respected appraisal associations are ISA, ASA and AAA. Of the three, the International Society of Appraisers is focused on personal property appraisals - the kind that most people need most of the time. ABD Antique Appraisers have earned ISA accreditation in Antiques, Fine Art and Residential Contents specialties. For any other unique items we consult with the worldwide network of other ISA specialists for accurate identification and values.