The main purpose of this legislation, known as the "Stop Deadly Denials Act of 2026," is to eliminate the use of prior authorization requirements in Medicare Advantage plans and to restrict the testing of such requirements in traditional Medicare. The goal is to improve access to necessary healthcare services for Medicare beneficiaries by reducing delays and denials that can occur when prior authorization is required. Key provisions of the legislation include a complete ban on prior authorization for specified items and services under Medicare Advantage plans starting January 1, 2027.