(1) A person must not carry out the work of a building practitioner that requires a building permit and the cost of which exceeds $5 000 unless the person is accredited under this Part in the relevant category and class.Penalty: In the case of (a) a natural person, a fine not exceeding 100 penalty units; or(b) a body corporate, a fine not exceeding 500 penalty units.(2) A person must not purport to be an accredited building practitioner unless the person is accredited under this Part.Penalty: In the case of (a) a natural person, a fine not exceeding 100 penalty units; or(b) a body corporate, a fine not exceeding 500 penalty units.(3) Subsection (1) does not apply to (a) an owner builder or a person engaged by an owner builder to carry out building work; or(b) a plumber carrying out a class of plumbing work as defined by the Plumbers and Gas-fitters Registration Act 1951 that requires a building permit; or(c) a plumber carrying out the replacement of roof decking that requires a building permit; or(d) a person carrying out electrical work as defined by the Electricity Industry Safety and Administration Act 1997 that requires a building permit; or(e) an owner builder who designs their own building work.