The bill amends Chapter 14-1 of the General Laws, which governs "Proceedings in Family Court," by allowing the family court to retain jurisdiction over juveniles until the age of 21 under specific conditions. The court may extend its jurisdiction beyond the age of 19 if it finds that it is in the best interest of the child, based on a motion from the child's representative or on its own initiative. This extension applies to children who are found delinquent or wayward.

The bill specifies that the court may order juveniles to be detained in a training school until the age of 21 if it determines that remaining confined and under the jurisdiction of the juvenile system is in the child's best interest.

Additionally, the bill outlines the responsibilities of the Department of Children, Youth, and Families (DCYF) in providing transition services for young adults who choose to remain under legal supervision until age 21. It emphasizes the need for collaboration with other agencies to create comprehensive transition plans, particularly for children with emotional or developmental challenges.

The bill also allows young adults who were previously in foster care or adopted to voluntarily agree to extended care and legal supervision. Furthermore, it clarifies the process for committing children to custody and mandates that a summary of information regarding the child be transmitted along with the order of commitment. This act is set to take effect immediately upon passage.