The Early Periodic Screening, Diagnosis, and Treatment (EPSDT) program is the child health component of Medicaid. Despite EPSDT's broad benefits, studies and state policymakers' experience suggest that not all children are receiving the services to which they are entitled. While many stakeholders understand the requirements that define EPSDT well child visits (commonly called screening visits) and their importance to supporting and promoting child health, the requirements that define EPSDT coverage for treatment (the "T" in EPSDT) are not as well understood. This brief explores states efforts and opportunities to improve access to treatment services in EPSDT (abstract from: http://nashp.org/pubs-date).