This document is the final report on the Pregnant Adolescent Substance Abuse Project (PASAP) conducted in Prince Georges County (Maryland) in 1987 and 1988. The PASAP consisted of two components that operated independently: an Early Intervention Program that increased the proportion of pregnant adolescent substance users who were using various remediation resources in the county, and the Preventative Program that offered presentations of information and discussion to high school students on the risks of substance use for pregnant and parenting women. The early intervention program enhanced screening for substance abusers through interviews of 403 young women at county Maternal Health Clinics, of whom 191 (47 percent) were referred to appropriate remediation services as abusers or as at-risk to be substance abusers. The prevention program reached 1,900 high school students with a 1-hour film presentation and discussion dealing with the risks of substance abuse for pregnant and parenting women. Evaluation of the two components showed that the programs did help to increase referrals to treatment in the intervention program and improvement in attitude, knowledge, and behavioral intent in the prevention program. Statistical data are provided in two tables and six figures. Appendices contain a 28-item client questionnaire and 3 goal timetables for various components of the program. (JB)