Erikson Institute Fussy Baby Network® (FBN) leaders from around the country have been considering the importance of building trauma-informed service programs. In this article, they discuss ways that the Facilitating Attuned Interaction (FAN) approach and the core processes used by the FAN can be helpful both when trauma is an unexpected presence in a family and when a provider has foreknowledge of serious concerns. The authors present the FAN's theory of change, the FAN "ARC of Engagement," and FAN Core Processes as a framework to assist providers in staying present and attuned in situations where trauma and high risk exist. In addition, they describe the role of the FAN in supporting trauma-informed practice in relationship-based infant/parent programs and in programs that specifically provide trauma treatment.