The increasing number of campus shooting incidents in the recent years has prompted campuses to develop emergency notifications systems to keep the students alert. Merely deploying mass notification systems on college campuses does not guarantee that it will be effective. Student compliance plays a very important role in establishing effectiveness of these systems. The aim of the study is to identify the factors that affect immediate compliance in active shooter incidents on campus. We use focus group interviews as the main methodology for determining these factors and examining why and how those factors affect a student’s decision to comply. This paper also establishes how the intentions to comply vary among different groups of students. Results of this research contribute to developing strategies to improve the efficiency of campus emergency notification systems.