In 2008, the Centers for Disease Control and Prevention (CDC) collaborated with Center for the Study of Traumatic Stress to conduct an organizational assessment of its disaster preparedness, deployment operations, policy and practices in an effort to identify factors to sustain resilience in CDC emergency responders. The following year, the Center developed and implemented a comprehensive two-day first-responder resiliency officer training program. This program (Deployment Safety and Resiliency Training or DSRT) incorporates the principles of Psychological First Aid to strengthen the outreach and resilience of its Deployment Safety and Resiliency team officers who travel worldwide to address public health threats and major disasters. The Center conducted its fourth training at CDC. As further training sessions are conducted, ongoing evaluation of effectiveness and outcome reports will be generated.