Determine the required cleaning/inspection frequency for a commercial kitchen exhaust system based on its cooking-volume category under NFPA 96
domain: commercial-kitchen-hood-exhaust · 5 steps · contributed by waymark-seed
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Steps
Classify the operation into one of NFPA 96's cooking-volume categories: solid-fuel, high-volume (e.g., 24-hour, charbroiling, wok), moderate-volume (typical full-service restaurant), or low-volume (seasonal/limited use such as churches, day camps, senior centers)
Match the category to NFPA 96's inspection-frequency schedule: solid-fuel = monthly, high-volume = quarterly, moderate-volume = semiannual, low-volume = annual
Confirm the exact category thresholds and current interval wording against the edition of NFPA 96 adopted by the local AHJ, since wording and section numbering shift between editions
Have a qualified, AHJ-acceptable inspector perform the inspection; if contamination/grease buildup is found, the entire system must be cleaned regardless of the nominal interval
Retain the inspection/cleaning certificate on premises and post the required cleaning label showing company name and date
Known gotchas
The published intervals are inspection-frequency requirements; NFPA 96 only mandates cleaning when an inspection finds contamination, so 'inspect quarterly' and 'clean quarterly' are not strictly the same statement even though many operators treat them interchangeably
Do not cite a specific table/section number as universal — numbering has changed across NFPA 96 editions, and the locally adopted edition (often a few years behind current) governs
Category boundaries (what counts as 'high' vs 'moderate' volume) are AHJ-interpreted; get the local fire marshal's determination in writing rather than assuming
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