The study examines the effects of a public emergency on citizens’ intention to use e-government services. Since the national disaster on September 11, 2001, the United States government has invested considerable efforts to increase homeland security and public safety. However, virtually no academic research has focused on the impact of public emergencies on e-government services. The study examines relationships between citizens’ intentions to use e-government services and factors that can influence those intentions in the context of a public emergency. The first survey was conducted in April 2003, when the second Iraq war was ongoing and the Homeland Security Advisory System’s terrorist treat level was high. The analysis of the survey results and implications of the study are presented.