The Behavior Therapy Training Institute (BTTI) is an in-depth three-day (or five-day, if held virtually) intensive training course in exposure and response prevention therapy (ERP), a form of cognitive behavior therapy (CBT), for mental health professionals who are treating individuals with obsessive compulsive disorder (OCD) and related disorders. Led by a world-renowned faculty, the BTTI was developed to help address the shortage of therapists properly trained in using CBT to treat OCD around the country and the world.
In addition to the flagship General BTTI and our Pediatric-focused BTTIs, the IOCDF annually hosts the BTTI for Treating OCD in Communities of Color, a training for BIPOC clinicians and taught by BIPOC faculty, and the BTTI Virtual en Español, conducted entirely in Spanish.
For more information, review the Frequently Asked Questions (FAQ) at the bottom of this page.
How to Register
Step 1: Join the BTTI Waitlist
Complete the BTTI Interest List form below to be added to the waitlist. Clinicians are placed in line based on the date they first submitted the form.
Step 2: Wait for an Invitation to Register
When a BTTI training has available seats, the IOCDF will invite clinicians from the waitlist to register in the order they joined. Invitations are extended on a first-come, first-served basis, and receiving an invitation is the next step toward securing your seat.
Step 3: Attend a Training That Works for You
If you are invited to a BTTI but cannot attend on the dates offered, you will remain on the waitlist and continue to receive invitations for future trainings until you are able to attend.
Important Information
- You may attend only one BTTI: Clinicians may attend either the General BTTI or the Pediatric BTTI, but not both. If you work with children or adolescents at all in your practice (even if they are not your primary focus), we strongly recommend choosing the Pediatric BTTI.
- Submitting multiple forms will not move you up the waitlist: If you submit the BTTI Interest List form more than once, the IOCDF will use your earliest submission date to determine your place in line.
- Not sure if you're on the waitlist? Email training@iocdf.org to check your status.
Invitations to attend a BTTI in 2027 will be sent out in mid-November 2026.
Please review the registration process above for details on how to receive a registration invitation and the FAQ below for more information on the training itself.
Upcoming 2026 BTTI Sessions
Invitations have been sent for the remaining 2026 BTTIs. If you did not receive an invitation, either we did not reach your BTTI Interest List submission date, or we may need updated contact information from you. If you have been on the BTTI Interest List for more than two (2) years and did not receive an invitation, please reach out to training@iocdf.org to confirm your current email.
BTTI Virtual en Español(opens in new tab)
Online training
November 5–9, 2026
Open for Registration >>(opens in new tab)
(No waitlist invitation required)
(N(opens in new tab)
Pediatric Virtual BTTI
Online training
December 10–14, 2026
Training Full
BTTI Frequently Asked Questions (FAQ)
Interested in additional advanced training?
The Advanced Forum is an opportunity for mental health professionals who have attended a Behavior Therapy Training Institute (BTTI) or a similar level of training to enhance their clinical skills. Each Advanced Forum focuses on a specific topic of interest to deepen the practice of clinicians who are comfortable treating OCD and related disorders.
