The main purpose of this Act is to amend the Building Act 1993 —
(a) in relation to the sale of buildings built by owner-builders;
(b) in relation to the registration of building practitioners and disciplinary actions relating to them;
(c) to create 2 classes of building surveyors;
(d) to clarify the powers of municipal building surveyors to act outside their municipal districts;
(e) in relation to the registration and licensing of plumbers and disciplinary actions relating to them;
(f) in relation to compliance certificates for plumbing work;
(g) to otherwise improve the operation of that Act.