House Bill 1816, also known as "The Isbill Act," aims to enhance the training of law enforcement and correctional personnel in Tennessee regarding involuntary admissions to inpatient mental health treatment. The bill mandates that the Tennessee peace officer standards and training (POST) commission develop guidelines and materials that outline the criteria for both emergency and nonemergency involuntary admissions, as specified in Tennessee Code Annotated, Title 33, Chapter 6, Parts 4 and 5. Furthermore, it requires that all law enforcement officers receive annual training based on these guidelines.

In addition, the bill establishes a similar requirement for correctional personnel, directing the relevant board to adopt guidelines for involuntary admissions and mandating annual training for correctional staff. This initiative is intended to ensure that both law enforcement and correctional personnel are adequately prepared to handle situations involving mental health crises. The act is set to take effect on July 1, 2027.