This study was designed to describe the experience of families exiting the early intervention (EI) system and transitioning into early childhood special education (ECSE) programs. Eight mothers of children preparing to exit EI services completed semistructured interviews, which were transcribed and analyzed using interpretative phenomenological analysis. Four mothers answered additional post-transition interview questions. Interview participants experienced anxiety about the transition process but reported that they found EI personnel to be knowledgeable and supportive allies. Participants also described favorable outcomes related to a structured transition class. These findings indicate that the transition out of EI is associated with parental anxiety and uncertainty, which can be allayed through strong relationships with EI service providers.