The block grant provides funds for state substance abuse prevention and treatment programs. The grants account for approximately 40 percent of public funds expended by states for substance abuse prevention and treatment. Using these federal resources, states support more than 10,500 community-based substance abuse prevention and treatment programs. Block grant services often target populations in greatest need, including high-risk youth, including those involved with the criminal justice system, pregnant and postpartum women, and people with HIV/AIDS. Transportation-related services supported with SAPT block grant may be broadly provided through reimbursement of transportation costs and mobility management to recipients of prevention and treatment services.  The approximate size of funding for this program is 1.78 billion.

The statutory language pertaining to transportation provisions within this program is found within the following citation(s): 

42 U.S.C.A. § 300x-21
42 U.S.C.A. § 300x-32

http://alt.samhsa.gov/reports/congress2002/chap2saptbg.htm