This act prohibits health insurance plans from imposing prior authorization requirements for all counseling and behavioral therapies associated with medication-assisted treatment and for prescription drugs for a patient receiving medication-assisted treatment if the dosage prescribed is within the U.S. Food and Drug Administration’s dosing recommendations. The act requires health insurance plans that provide prescription drug coverage to ensure that at least one medication from each drug class approved by the U.S. Food and Drug Administration for the treatment of substance use disorder is available on the lowest cost-sharing tier of the plan’s prescription drug formulary. It further requires the Department of Vermont Health Access to submit reports to the General Assembly annually between 2020 and 2022 regarding prior authorization processes for medication-assisted treatment in Vermont’s Medicaid program.