HB 1938 amends mental health law provisions to extend the preliminary examination period for individuals in mental health protective custody from 48 to 72 hours. It also revises criteria for temporary and extended mental health services orders to address severe mental or physical deterioration posing a substantial risk of harm to the individual. The bill adjusts the maximum duration of outpatient mental health treatment from 45 to 90 days, with possible extensions up to 180 days. These changes apply to proceedings and detentions beginning on or after September 1, 2025​.