Abstract: Background: Currently there is no universal consensus evaluation for active-duty military with asymptomatic ventricular pre-excitation. With different military occupations imposing separate risks and stressors, we sought to evaluate the rates of electrophysiology study (EPS) in military personnel according to military occupation. This study investigates the rates of invasive EPS utilization in military personnel between different military occupations. Methods: Personnel with asymptomatic ventricular pre-excitation diagnosed between 2016-2021 were investigated and we reviewed the rates of invasive EPS according to high or low military occupational risk. Accessory pathways were deemed high-risk if the anterograde effective refractory period or the shortest pre-excited R-R interval observed during atrial fibrillation was less than 250ms. Results: 101 personnel (mean age 32.3±9.2 years, 91% male) without intermittent pre-excitation were evaluated. 78 (67%) were referred for EPS. Personnel with high-risk operational occupations (N=44) were more likely to undergo invasive EPS when compared with lower-risk (N=62) occupations (37, 84% vs 34, 55%; p=0.0012). Of the 78 EP studies, 54 (69%) received ablation including all individuals with highrisk pathways. In those who underwent EPS, ablation delivery rates were similar between those in high-risk and lower-risk occupations (high-risk 28, 88% vs lower-risk 23, 77%; p=0.2626). Conclusion: Military personnel with asymptomatic ventricular pre-excitation and high-risk occupations more commonly receive EPS for military duty clearance. This study highlights the role of invasive EPS for other tactical athletes with high-risk occupations and asymptomatic ventricular pre-excitation.