As more LEAs implement coordinated early intervening services (CEIS), LEAs and states are faced with questions about documenting the funds used for CEIS and children served by CEIS. The CEIS Practice Guide, developed jointly by the IDEA Data Center (IDC) and CIFR, describes how the LEA or state under various scenarios could track the amount an LEA reserved for voluntary or comprehensive CEIS; the activities conducted using IDEA funds for voluntary or comprehensive CEIS; the target group of children; and ongoing child-level data about special education identification.