International Journal of Engineering and Information Systems (IJEAIS)   Year: 2021 | Volume: 5 | Issue: 5 | Page No.: 66-92 A Collaborative Effort of School, Parents and Community in Reducing the Prevalence of Smoking in Angat National High School Virginia S. San Gabriel Abstract: The study aimed to reduce the prevalence of smoking among Junior High School (JHS) students of Angat National High School through the collaborative effort of school, parents and community. The investigation covered 570 JHS students for SY 2019-2020. Forty students who found to smoke in a regular basis had undergone the School-based Smoking Prevention and Cessation Program. The study utilized mixed method of research. The sampling method was purposively done. Localized Global Youth Tobacco Survey (GYTS) was used to determine the susceptible smokers. On the other hand, interview was conducted to determine the regular smokers. Results of the study showed that 36 out of 40 parents do not have any knowledge that their children smoke. Parents supported the School-based Smoking Prevention and Cessation Program. They also monitored and guided their children in the prevention and cessation of their cigarette smoking/ vaping. Furthermore, 72.5% of the students smoke outside of their homes while 3% bought cigarette to the stores near the school. Moreover, the Local Barangay Unit call the attention of the sari-sari stores who sells cigarette to minors most especially those located nearby the school. From the findings, the researcher concluded that School-based Prevention and Cessation Program conducted is effective in reducing the prevalence of smoking among JHS students of ANHS. Therefore, it has been recommended that collaboration between and among school, parents and community must be established to help students stop and/or cease smoking.