Requires the Administrator of the Office of Juvenile Justice and Delinquency Prevention (Office) to include in the annual report of the Office information on juveniles held in state and local secure detention and correctional facilities, the treatment of status offenders (e.g., runaways, truants), and evidence based programs for juvenile delinquency prevention.

Expands requirements for state plans under the Act to require: (1) statewide compliance with the core requirement of the Act for protection of incarcerated juveniles; (2) alternatives to detention for juveniles who are status or first-time minor offenders; (3) use of community-based services to address the needs of at-risk youth; (4) programs to improve the recruitment, selection, training, and retention of professionals working in juvenile delinquency prevention programs; and (5) the identification of racial and ethnic disparities among juveniles in the juvenile justice system.

Authorizes the Administrator to make incentive grants to state and local governments for juvenile delinquency prevention programs, including evidence based programs for the prevention and reduction of juvenile delinquency, personnel recruitment and training, and mental health and substance abuse screening and treatment.

Includes mentoring programs as a permissible grant purpose under the Incentive Grant Program for Local Delinquency Prevention. Reauthorizes such grant program through FY2013.

(Sec. 103) Adds and amends definitions under JJDPA. Defines "core requirements" as certain requirements relating to the protection of juveniles against placement in adult prison facilities and the treatment of juveniles equitably on the basis of gender, race, family income, and disability. Defines "evidence based" as a program or practice that is demonstrated to be effective and that: (1) is based on a clearly articulated and empirically supported theory; (2) has measurable outcomes; and (3) has been scientifically tested.

Title II: Juvenile Justice and Delinquency Prevention - (Sec. 201) Revises the date on which the Administrator of the Office of Juvenile Justice and Delinquency Prevention must issue the annual plan for coordinating federal juvenile justice efforts.

(Sec. 202) Revises and increases the membership of the Coordinating Council on Juvenile Justice and Delinquency Prevention to include mental health professionals. Requires the Coordinating Council to report to Congress on its recommendations for coordinating federal juvenile delinquency programs and to publish such report on the websites of the Department of Justice (DOJ) and the Coordinating Council.

(Sec. 203) Adds elements required for the Administrator's annual report, including: (1) data on the confinement and release of juveniles from custody and on status offenders (juveniles arrested for offenses that would not be criminal if committed by adults); (2) a description of the criteria used to determine what JJDPA programs qualify as evidence-based and promising programs; (3) a comprehensive list of those programs the Administrator has determined meet such criteria; (4) a description of funding provided to Indian tribes; and (5) an analysis and evaluation of compliance by and payments to grant recipients.

(Sec. 204) Increases the allocation of funds for technical assistance to states under JJDPA. Requires allocations of funds under the Act to be based upon the most recent census data.

Authorizes the reallocation of funds withheld from states due to noncompliance with core requirements into improvement grants for assisting states in achieving compliance with core requirements.

Requires the Administrator to impose conditions for awarding grants based upon compliance with core requirements and to provide technical assistance to states for achieving compliance.

(Sec. 205) Requires states to post their juvenile delinquency prevention plans on a publicly available website within 30 days of final approval.

Revises membership requirements for state juvenile delinquency prevention advisory groups to include volunteers who work with youth of color. Requires such advisory groups to use grant funds to: (1) provide training and technical assistance to state and local agencies for juvenile delinquency prevention activities; and (2) expand access to court-appointed legal counsel for representation of juveniles.

Revises requirements for state juvenile delinquency prevention plans to: (1) promote compliance with core requirements; (2) provide alternatives to secure detention for juveniles; (3) reduce the number of juveniles placed in secure detention and adult corrections facilities; (4) engage family members in the design and delivery of juvenile delinquency prevention and treatment services; (5) provide for the use of community-based services to address the needs of at-risk youth; (6) provide for the sharing of records by juvenile justice and child welfare agencies for abused and neglected youth; (7) address mental health and substance abuse screening, assessment, referral, and treatment for juveniles in the juvenile justice system; and (8) provide for expanded access to court-appointed counsel for juveniles in the juvenile justice system.

Requires the Administrator to: (1) make determinations as to whether states are in compliance with core requirements; and (2) provide technical assistance to state advisory groups.

Modifies provisions relating to the detention of juveniles awaiting trial in adult criminal court to require placement in a juvenile facility unless a judge determines that it is in the interest of justice for a juvenile to be held in an adult facility. Prohibits the detention of a juvenile in an adult facility for more than 180 days unless the court determines in writing that there is good cause for further detention.

Sets forth additional criteria for identifying and reducing racial and ethnic disparities among youth in the juvenile justice system.

Modifies requirements for the detention of status offenders to prohibit placement of such juveniles in secure detention unless it is deemed in their best interest.

Expands procedural requirements relating to reentry services for juveniles to require: (1) written case plans for each juvenile; (2) a description of living arrangements after discharge and post-release services; and (3) court review of such reentry plans and services.

Permits the Office of Juvenile Justice and Delinquency Prevention to take punitive action in the current fiscal year against states that fail to comply with a core requirement (current law provides for such punitive action in a subsequent fiscal year).

Requires states that are found to be out of compliance with core requirements to submit a report to the Administrator detailing the reasons for noncompliance and a plan to regain compliance. Requires such report to be posted on a publicly available website.

(Sec. 206) Includes as grant purposes under JJDPA: (1) truancy prevention and reduction activities; and (2) partnership projects between states and research institutions to improve the recruitment and retention of professional personnel in fields related to juvenile delinquency prevention.

(Sec. 207) Eliminates the requirement that Indian tribes applying for a grant under JJDPA provide evidence of performing law enforcement functions.

(Sec. 208) Makes mandatory the requirement for the Administrator to report on the purposes and goals of programs funded under JJDPA (currently discretionary).

Requires the Administrator to: (1) conduct research on the prevalence and duration of behavioral health needs among juveniles held in secure detention or in adult correctional facilities; (2) provide a description of the best practices in discharge planning for juveniles and an assessment of living arrangements for juveniles who cannot return to their homes; (3) develop a national juvenile recidivism measure; (4) assess the effectiveness of treating juveniles as adults in criminal court; and (5) publish a report on the outcomes for juveniles who have reintegrated into the community.

(Sec. 209) Requires the Administrator to: (1) develop and issue standards of practice for attorneys representing children in the juvenile justice system; and (2) provide training and technical assistance for local and state juvenile detention and corrections personnel to improve conditions of juvenile confinement.

(Sec. 210) Authorizes the Administrator to make incentive grants to state and local governments for juvenile justice and prevention programs. Permits grant funds to be used to: (1) increase the use of evidence-based or promising prevention and intervention programs; (2) improve the recruitment, selection, training, and retention of professional personnel; and (3) establish partnerships between state and local juvenile justice agencies and mental health authorities to enhance mental health and substance abuse services for juveniles.

(Sec. 211) Authorizes appropriations for FY2009-FY2013 for: (1) juvenile justice and delinquency prevention programs; and (2) incentive grants for state and local juvenile justice and delinquency prevention programs.

Title III: Incentive Grants for Local Delinquency Prevention Programs - (Sec. 301) Defines "mentoring" for purposes of the local delinquency prevention incentive grant program as matching one adult with one or more (not to exceed four) youths for the purpose of providing guidance, support, and encouragement, where the adult and youths meet regularly for not less than four hours each month for not less than a nine-month period.

(Sec. 302) Adds mentoring programs as a grant purpose for delinquency prevention programs.

(Sec. 303) Authorizes appropriations for the delinquency prevention incentive grant program for FY2009-FY2013.