Bioterrorism within the United States is a continuing threat. Because children and adolescents are among the most vulnerable populations during a bioterrorist attack, school counselors must be prepared with knowledge and skills. This article provides pertinent information including (a) a description of bioterrorism and biological agents, (b) the psychological impact of bioterrorism, (c) school counselors’ role in a school-related incident, and (d) disaster mental health principles and procedures. Implications for school counselors are discussed in the context of the ASCA National Model[R]. **********