For general questions, email:
For questions regarding test paperwork, certificates, renewals, etc., email:
American Temperament Test Society, Inc.
P.O. Box 58067
Houston, TX 77258
For clubs wanting to schedule/host an ATTS test:
Decide on a date, then download and complete the PDF form or the Word document on this site. Send the completed form along with the fee to
ATTS Test Scheduling
PO Box 155
Hoytville, OH 43529-0155
For Apprentice Testers, Testers or Chief Testers who have not received a renewal letter or a membership card:
Please contact Peg Phillips at email@example.com or call 419-348-1765.