The Division of Fire Safety developed the original Fire Investigator course and certification program in 1986 because of the devastating effects of fire and arson, along with the need for a comprehensive training program for individuals committed to determining fire cause. The current course, which is based on the NFPA 1033 standard, was designed to provide education in fire investigation, with various opportunities to combine experience with training obtained during the course. The course assists students with completing the relevant classroom exercises and practical skills, as well as preparing them to take the state Fire Investigator Certification Examination.

This 40-hour course is offered three times a year or as resources permit. Topics discussed include accidental and incendiary fire causes, juvenile firesetting, legal aspects, and interview and interrogation. Successful completion of the course and practical skills exam are required for eligibility to take the division’s Fire Investigator Certification Examination. The student must achieve a score of 70 percent on the exam to qualify for certification. The requirements for Fire Investigator I certification are based on NFPA 1033-2009.


Preregistration is required and must be submitted and approved prior to the start of the course. This course is open to interested individuals who have met all prerequisites and submitted completed applications with required documentation attached. Classes are limited to a maximum of 25 students. For course information and how to register for this course, refer to the Fire Investigator certification booklet and application (see Page 4 of the Fire Investigator booklet) or contact the division’s Training and Certification Unit at 573-522-4849. Applicants will be notified prior to the course of their acceptance and any additional instructions.

As an approved provider of POST continuing education credit, the division has formatted this course to meet in-service continuing education hours for law enforcement representatives.

Fire Investigator Certification Exam

The written exam for this level consists of 100 multiple-choice questions referenced to the NFPA 1033-2009 standard and the Division of Fire Safety’s Investigator curriculum. Preparation for the exam should include a review of Fire Behavior, Building Construction, and Hazardous Materials Awareness curriculum. Students have two hours to complete the written exam. The student must achieve a score of 70 percent on the exam to qualify for certification. The practical skills exam is to be completed during the Fire Investigator Course.

Fire Investigator certification is internationally accredited by IFSAC and Pro Board.


Currently certified investigators may attend selected portions of the course in order to obtain recertification credit hours. Contact the division for more information on recertification course attendance.