Requires a child under the age of eighteen to be placed in a facility operated by the department of social and health services or the department of children, youth, and families, as applicable, to determine the child's earned release date.

Authorizes a juvenile offender adjudicated of a serious violent offense to be committed by the juvenile court to the department of social and health services or the department of children, youth, and families, as applicable, for placement in a correctional institution up to the time the juvenile offender is age twenty-five and one-half years old, but not beyond.

Requires the state institute for public policy to assess the impact of this act on community safety, racial disproportionality, and youth rehabilitation.