States including Oregon, Washington, California, and Colorado require multiple physician evaluations, waiting periods, and a terminal diagnosis confirmation before a patient can access aid-in-dying medication. These layered requirements are specifically designed to confirm the decision is voluntary, informed, and not the product of a treatable mental health condition like depression. Advocates point to this structure as evidence that legalization doesn't have to mean removing safeguards. Advocates argue that these layered safeguards directly address the core concerns critics raise about coercion or error.