Service coordinators under Part C of the Individuals With Disabilities Education Act (IDEA, 2004) help families navigate the early intervention (EI) system and ensure regular communication among team members so services are aligned with family priorities and recommended EI practices. To meet the demands of service coordination, personnel entering the EI field who will serve as service coordinators must receive high-quality professional development to orient them to their unique roles and responsibilities. The purpose of this program evaluation was to examine the effectiveness of one state's service coordination training program and its alignment with the Knowledge and Skills for Service Coordinators (KSSC), a resource document in the Division for Early Childhood and IDEA Infant Toddler Coordinators Association (DEC & ITCA) Joint Position Statement: Service Coordination in Early Intervention (2020). Survey results suggested that the training program was associated with increased knowledge and skills for service coordinator participants in many of the KSSC areas. Participants also reported using what they learned in their work with families. The rubric used to evaluate this training program could be a resource for state-level professional development providers to evaluate alignment of current and future training for service coordinators with the KSSC.