This pilot study includes children identified as moderate- as well as high-risk for autism spectrum disorder (ASD) within Georgia's Babies Can't Wait (BCW) Early Intervention (EI) program. The project will evaluate the feasibility, acceptability, and implementation of a diagnostic protocol, including optional measures, through measures of recruitment, retention, adherence, provider confidence, and time from referral to report completion. It will also examine which child diagnostic measures are essential and needed to improve psychologists' diagnostic confidence. Caregiver, early intervention provider, and clinician experiences and satisfaction before, during, and after assessment will be assessed to evaluate protocol acceptability, knowledge, and access to services. Outcomes will be analyzed using the RE-AIM Framework (reach, effectiveness, adoption, implementation, maintenance) and compared across BCW districts and child characteristics, including changes in autism screening, referral, and evaluation rates over time.