This study evaluated the effectiveness of a culturally tailored smoking prevention program for Asian American youth (Youth-PASS). A field-tested questionnaire was used to solicit information from participants on knowledge, attitudes and behaviors associated with tobacco and tobacco use, as well as satisfaction with prevention program content and style of presentation. Pretest and posttest paired data (n = 161) were collected and analyzed. Posttest results revealed a significant increase it, mean scores for knowledge related to tobacco use (4.1, p is less than .05). Although a positive shift in the knowledge score from pretest to posttest was found in each participant subgroup, awareness rates varied as a function of survey questions. The posttest mean attitude score increased slightly (0.6) but significant (p = 0.007). This score was slightly higher in males (1.0) than females (0.2). A large majority of participants (90%) reported they intended to share information and experiences gained through the program with family and friends. The study revealed that behavior intention was more closely associated with attitude, rather than with knowledge change. There was a significant correlation (r = 0.31) between changes in attitude and behavior intention. About 70 percent of participants responded favorably to program content and delivery style; most contributed to enhancement g the effectiveness of the program. The second generation Youth-PASS will reflect these contributions.