Today, the Centers for Medicare & Medicaid Services CMS released guidance aimed at building on their commitment to partner with states to ensure that they have flexibilities and the tools necessary to combat the opioid crisis.  This new guidance provides information to states on the tools available to them, describes the types of approaches they can use to combat this crisis, ensures states know what resources are available, and articulates promising practices for addressing the needs of beneficiaries facing opioid addiction. Notably, CMS released an Informational Bulletin that provides states with information they can use when designing approaches to covering critical treatment services for Medicaid eligible infants with Neonatal Abstinence Syndrome (NAS). Additionally, CMS issued a letter to states on how they may best use federal funding to enhance Medicaid technology to combat drug addiction and the opioid crisis.