If a state is already using actual acquisition cost (AAC) as their reimbursement methodology, does
If a state is already making payment for prescription drugs under its state plan based on AAC, it may continue to use that methodology. However, if a state decides to change its AAC model of reimbursement, (e.g., the state decides to use the National Average Drug Acquisition Cost (NADAC) instead of a state survey to implement a payment methodology based on AAC), the state must submit a new SPA through the formal SPA process for review.