Drug Court Reauthorization and Improvement Act of 1999

Drug Court Reauthorization and Improvement Act of 1999 - Authorizes the Attorney General to make grants to States, State courts, local courts, units of local government, and Indian tribes for programs that involve: (1) continued judicial supervision over offenders with substance abuse problems who are not violent offenders; and (2) the integrated administration of related sanctions and services. Prohibits the participation of violent offenders in such programs.

Amends the Public Health Service Act to authorize appropriations for FY 2000 through 2003 to enable the Secretary of Health and Human Services to provide drug treatment services in conjunction with drug court programs.

Authorizes appropriations to the Attorney General for such fiscal years for such programs.