Defining the universal gold standard in certification of traumatic stress-specific expertise for over 30 years.

Get recognized for your expertise in trauma recovery, crisis response, disaster management, suicide prevention, grief recovery, and more.

ATSS is the cutting edge in providing the highest certification levels for clinical and non-clinical professionals. It holds federally-recognized credentials in trauma treatment, trauma support services, crisis and stabilization management, safety protocols, and care coordination in aiding those exposed to natural and man-made traumatic events. ATSS certified professionals meet the highest standards of trauma-informed, evidence-based mental health practices, and have demonstrated clinical achievement through a combination of verified experiential field hours, peer sponsorship, and continued professional development. Our international community is respected and recognized as a leader in traumatic stress. We stand to support communities with resources that provide services for multidimensional wellness. For more information on how to join, please see our resources page.


Green Cross Academy of Traumatology

International Critical Incident Stress Foundation (ICISF)

Trauma Informed Resiliency Academy

College of Clinical Care


University of Pennsylvania – Public Safety Team Members

Mobile Response Team – Health Emergency Management British Columbia- Provincial Health Services Authority

Justice Institute of British Columbia – New Westminster

Individual and Family Choices Program – State College, Pennsylvania

Family Resource Center, Wytheville, VA

Integral Care, Austin Texas

National Organization of Victim Assistance (NOVA)

Hamilton Police Services, Tehkummah, Ontario

Ontario Network of Victim Service Providers

Canadian Resource Centre for Victims of Crime

International Conference and Summit on Violence, Abuse, and Trauma