The Centers for Medicare & Medicaid Services (CMS) has proposed the Interoperability Standards and Prior Authorization for Drugs rule to streamline the prior authorization process for patient access to treatment. Specifically, the rule incorporates drugs into the electronic prior authorization requirements and establishes decision deadlines for impacted payers responding to requests. The CMS proposed rule would require impacted payers to report approval and denial rates, appeal outcomes, and decision time frames as part of the prior authorization metrics.