The International Association of Auto Theft Investigators (IAATI) was formed in 1952 in order to improve communication and coordination among the growing family of professional auto theft investigators. It has grown to 3,880 members representing over 35 countries and includes representatives of law enforcement agencies, as well as many others with a legitimate interest in auto theft investigation, prevention and education. We recognize that, just as law enforcement agencies cannot successfully function independent of one another, auto theft investigation requires the active participation of the private sector; therefore, our membership also includes the insurance industry, automobile manufacturers, car rental companies and, of course, the National Insurance Crime Bureau and its sister agencies in Canada and Europe.

Responding to requests for Auto Theft training beyond his jurisdictional boundaries, Illinois State Police Captain Clyde Oliver petitioned the International Association of Auto Theft Investigators and was granted a Charter on January 1, 1972 to form the North Central Regional Chapter. Currently the NCRC draws its membership from the Mid-Western United States and the Canadian Provinces of Ontario and Manitoba.

The South Central Chapter is comprised of Texas, New Mexico, Oklahoma, Arkansas, and Louisiana

The Southeast Chapter includes the entire area of the States of Alabama, Delaware, Florida, Georgia, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, and the District of Columbia.

The Western Regional Chapter was formed and received their IAATI Charter in 1988. The WRC is comprised of 3 Canadian Provinces of Alberta, British Columbia and Saskatchewan along with the U.S. States of California, Washington, Oregon, Arizona, Colorado, Hawaii, Alaska, Wyoming, Idaho, Montana, Nevada, and Utah. When the WRC was initially formed there was a concern by the local State and Provincial auto theft associations that had been in existence for many years that the WRC would somehow usurp and interfere with their stated objectives and training seminars. As a result of this concern the stated objective of the WRC became one of support for the regional auto theft associations and the training they provided and not to develop a separate Western Regional Chapter Training Seminar. As a result of this stated objective the WRC became known as the "paper chapter" as unlike the other Regional Chapters that make up IAATI, no yearly training seminar would be held so as to conflict with the State and Provincial Auto Theft Associations. This objective remains in place to this day. To further augment the WRC commitment to the local State and Provincial Auto Theft Associations the Board of Directors of the WRC is comprised of the Presidents of the State and Provincial Auto Theft Associations that exist today within the Western Regional Chapter.

The Australasian Branch of the International Association of Auto Theft Investigators (I.A.A.T.I.) was formed in Australia in 1994. We have members throughout every State of Australia and New Zealand. Membership is made up of representatives from police services (investigators, analysts, and forensic staff), insurers, private investigators, vehicle registration authorities, vehicle manufacturers and others with a legitimate interest in vehicle theft investigation, prevention and education.

The European Branch of I.A.A.T.I. was formed in 1990.

The United Kingdom Branch of IAATI was formed and received its charter in 2001. The founding members saw an excellent opportunity to serve the needs of their region and those people engaged in the prevention and detection of vehicle crime. The United Kingdom Branch includes the countries of England, Scotland, Wales, Northern Ireland and the Republic of Ireland.

* Note: This is the total number of IAATI members in each chapter. The actual chapter membership may be greater than listed if the chapter has members that are not currently also IAATI members.