Kitchen Exhaust Inspections The kitchen exhaust inspections process is outlined in the NFPA 96 Codes. The codes require hood cleaning businesses to examine the complete kitchen exhaust system and fill out an inspection document. Both kitchen exhaust system cleaning reports and kitchen exhaust system inspection reports are expected to be kept on record by the qualified companies for a term of 3 years. If there is a fire in the kitchen area exhaust system these records can be court ordered…