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This subclass authorizes construction work that is not the exclusive domain of master pipe mechanics and electrical contractors, and relates to underground pumping systems as well as similar or related construction work.
This subclass authorizes, without exceeding the regulatory framework, construction work relating to:
The holder of a subclass 2.3 licence cannot carry out drilling work without holding a subclass 2.1 licence.
The installation of pumps in a pumping station, water treatment or filtration plant is governed by subclass 1.1.1.
Work related to water treatment systems (softener, filters, etc.) does not come under this subclass. It could, depending on the case, be governed by one of the following subclasses: 15.5, 15.5.1.