Contacting ATTS

For general questions, email:

For questions regarding test paperwork, certificates, renewals, etc., email:

Mailing address:
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 or call 419-348-1765.

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