Explicitly abandoning the parens patriae philosophy of the juvenile justice system, a 'justice' philosophy was adopted. Provisions of the law include a determinate sentencing structure, the divestiture of status offenses, greater due process rights for juveniles, and a formalized diversion process which emphasizes accountability rather than treatment. This paper brings together the available research on the implementation of the law to assess how the introduction of a justice approach has influenced equality, fairness, and punishment levels in Washington State's juvenile justice system. (Author abstract)