Maintenance of fire-extinguishing systems and listed exhaust hoods containing a constant or fire-activated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) acceptable to the ________ at least every __________.

Maintenance of fire-extinguishing systems and listed exhaust hoods containing a constant or fire-activated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) acceptable to the ________ at least every __________.

• A. 3 months
• B. 6 months
• C. 9 months
• D. 12 months

Answer: (B)

Regular, competent maintenance of kitchen fire-extinguishing systems and the listed exhaust hood assemblies is essential because these systems operate in a grease-heavy environment and must be ready to activate at a moment’s notice. The maintenance must be performed by individuals who are properly trained, qualified, and certified, and who are acceptable to the authority having jurisdiction. The required interval is every six months, ensuring that all components—actuators, valves, inspection of the water or fire-suppression circuit, nozzles, lever and detection devices, and the integrity of the hood, plenums, and ducts—are checked and kept in serviceable condition. The AHJ approval ensures that the technicians meet the applicable standards and demonstrate the necessary competence. Frequencies like every three, nine, or twelve months do not meet this semiannual requirement.

Regular, competent maintenance of kitchen fire-extinguishing systems and the listed exhaust hood assemblies is essential because these systems operate in a grease-heavy environment and must be ready to activate at a moment’s notice. The maintenance must be performed by individuals who are properly trained, qualified, and certified, and who are acceptable to the authority having jurisdiction. The required interval is every six months, ensuring that all components—actuators, valves, inspection of the water or fire-suppression circuit, nozzles, lever and detection devices, and the integrity of the hood, plenums, and ducts—are checked and kept in serviceable condition. The AHJ approval ensures that the technicians meet the applicable standards and demonstrate the necessary competence. Frequencies like every three, nine, or twelve months do not meet this semiannual requirement.