27.1.In Divisions IV to VI of this Chapter, the terms “appliance”, “air supply”, “cylinder”, “container refill centre”, “combustible”, “enclosure”, “safety limit control”, “point of transfer”, “combustion products”, “tank”, “safety shut-off valve”, “relief valve”, “filling plant”, “structure”, “venting system”, “hose connector” and “hose” have the meaning given to them in CAN/CSA-B149.1: Natural Gas and Propane Installation Code and CAN/CSA-B149.2: Propane Storage and Handling Code, as adopted by Chapter II of the Construction Code (chapter B-1.1, r. 2).