An Act establishing reasonable limitations on the solitary confinement of inmates 21 years of age or younger

This bill limits solitary confinement for inmates under 21 in Massachusetts correctional facilities. It prohibits keeping any inmate under 21 in isolation for more than 48 hours, except when they pose an immediate threat to safety, requiring a written report justifying continued confinement. Superintendents must document threats and can extend confinement by up to 24 additional hours only if evidence supports the ongoing risk. The bill does not change solitary confinement rules for inmates over 21, who may still be confined for up to 15 days. It directly affects young inmates in state prisons and local jails, aiming to restrict prolonged isolation.