Section 2 of the Principal Act is amended as follows:(a) by inserting the following definitions after the definition of Board :complainant means a person who has made a complaint;complaint means a complaint, made under section 20A , that has not been withdrawn;continuing professional development requirement means a continuing professional development requirement determined by the Board under section 20G ;(b) by inserting the following definition after the definition of member :professional misconduct , in relation to a person, means (a) substantial or persistent unprofessional conduct by the person; or(b) conduct of the person, whether or not occurring in connection with the practice of architecture, that would justify concluding that the person is not a fit and proper person to be an architect;(c) by omitting the definition of Registrar and substituting the following definitions:Registrar means the Registrar appointed under section 7 ;unprofessional conduct , in relation to a person, means conduct by the person, in the course of the practice of architecture by the person, that falls short of the standard of competence and diligence that a member of the public is entitled to expect of a reasonably competent person engaging in the practice of architecture.