; (iii) in subparagraph (F), by striking and at the end; (iv) in subparagraph (G), by striking the period at the end and inserting a semicolon; and (v) by adding at the end the following: (H) a description of the best practices in discharge planning; and (I) an assessment of living arrangements for juveniles who, upon release from confinement in a State correctional facility, cannot return to the residence they occupied prior to such confinement. ; (2) in subsection (b), in the matter preceding paragraph (1), by striking may and inserting shall ; and (3) by adding at the end the following: (f) National recidivism measure The Administrator, in consultation with experts in the field of juvenile justice research, recidivism, and data collection, shall— (1) establish a uniform method of data collection and technology that States may use to evaluate data on juvenile recidivism on an annual basis; (2) establish a common national juvenile recidivism measurement system; and (3) make cumulative juvenile recidivism data that is collected from States available to the public. (g) GAO review Not later than 1 year after the date of enactment of the Juvenile Justice and Delinquency Prevention Reauthorization Act of 2017 , the Comptroller General of the United States shall conduct a review of available research conducted by the Attorney General, the Secretary of the Interior, and other Federal entities relating to Indian youth who may come into contact with the juvenile justice system, which shall include— (1) an examination of the extent of Indian youth involvement in the juvenile justice system, including the number of Indian youth in Federal, State, or tribal custody or detention for offenses committed while under the age of 18; (2) a description of the unique barriers faced by Indian tribes in providing adequate services to rehabilitate youth who have been adjudicated as delinquent