Recertification can be accomplished by (1) completing a minimum 4-hour training course to subsequent editions of NFPA 99, and (2) successfully passing a proctored multiple-choice open book examination. Both the course and the examination are required according to ASSE 6000, sections 10-3.3.1 and 10-3.3.2. The recertification examination contains forty questions based on the most current edition of NFPA 99. Candidates must answer a minimum of thirty-two (32) of the questions (80%) correctly on the examination to achieve a passing grade. Two (2) hours are allowed for the examination.