American Polygraph Association

The American Polygraph Association (APA) is the largest professional organization of polygraph examiners, researchers and professionals in the world. The APA has over 3000 members. There are members from more than 40 countries. About 20% of the membership is from countries other than the U.S. The APA accredits polygraph over 20 training programs, including the Canadian law enforcement college and the Israeli government school.