Fume hoods and exhaust systems shall comply with the applicable requirements in CSA Standards C22.1 and C22.2 No. 151 or C22.2 No. 1010.1. Note: The risk assessment may identify the fume hood and immediate surroundings as hazardous locations requiring special (e.g. explosion-proof) electrical equipment. The criteria for determining the degree of hazard and the appropriate type of electrical equipment are provided in Section 18 of the Canadian Electrical Code, Part 1. In order to obtain proper electrical classification of hazardous locations, ft is necessary to contact the local authority having this jurisdiction.