The purpose of the HECSO is to train FBI personnel to safely respond to and operate at hazardous crime scenes while identifying, collecting, and preserving hazardous evidence. Students of the HECSO are trained to the First Responder Operations Level as defined by OSHA 29 CRF 1910.120 (q)(6)(ii), “Hazardous Waste Operations and Emergency Response”, as well as meet objectives for the Operations Level Responder as defined by the National Fire Protection Association’s (NFPA) Standard 470. The training environment includes traditional classrooms, science labs, and practical space both indoors and outdoors. The HECSO is a total of ten days (eight instructional days and two evaluation days.) The average number of students per iteration of the program is 24.