This thesis sought to understand reasons for noncompliant respondents and ineffective leadership in the National Incident Management System (NIMS) by Texas public safety training officers. Research has been conducted on the policies and their implications for NIMS, organizational culture and its impact on NIMS, and the hierarchy network of the Incident Command System (ICS). However, research evaluating the attitudes and perceptions regarding the effectiveness of NIMS is scarce. Training officers from rural fire departments, emergency medical services, and law enforcement agencies were the population for this study (n=33). The results of this study have implications for combined fire department, emergency medical services, and law enforcement training (interoperability), simplification of the management structure, and a mentoring program. This study should be explored further in an urban setting, based on this model. This study showed that respondents agreed that rural emergency responders tend to be noncompliant with NIMS. Respondents mentioned that rural emergency responders disagree with the effectiveness of NIMS. This study showed that a correlation occurred between the effectiveness of NIMS and the number of times a respondent was involved in a formal NIMS incident command. The following recommendations were made based on the findings and conclusions of this study. Researchers should continue to look at what public safety training officers believe affects the adaptability of NIMS. Training officers should consider contributing to the future NIMS curriculum. Training officers should focus on interoperability issues through increased field exercises. Research should be conducted to determine what improvements to curriculum effect future NIMS compliance. Further research should be conducted on the effectiveness of individual compliance, and achievement.