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Part E1 FacilitiesTAS Part E2 Heating, cooling and ventilation systemsTAS Part E3 Stormwater - Roof drainage systemsTAS Part E4 Stormwater surface and sub-surface drainage systemsVIC Part E2 Heating, ventilation and air conditioning systemsVIC Part E3 Stormwater - Roof drainage systemsVIC Part E4 Stormwater - Surface and sub-surface drainage systems