The Commissioner of Building and Zoning Inspection may disapprove or revoke any certificate of registration or renewal thereof issued under provisions of this chapter for one or several of the following reasons:
(a) Misrepresentation of a material fact by the applicant in obtaining the certificate of registration or renewal thereof.
(b) The use of the certificate of registration by the registrant in obtaining a building permit for work to be performed by a contractor or builder other than the registrant.
(c) Violation of or noncompliance with any provision of any applicable code or ordinance of the City in the performance of any work done pursuant to the certificate issued hereunder.
(d) Failure to abate a violation or noncompliance with any provision of any applicable code or ordinance of the City within the time specified in the written notice of such violation or noncompliance.
(e) Upon a determination by the Commissioner that the applicant or registrant has engaged in a course of conduct calculated to induce owners and/or tenants of property or their authorized agents, to enter into a contractual relationship for labor and/or materials through misrepresentation of labor costs or that the materials used complied with all applicable ordinances of the City in which such misrepresentation was made.
For the purposes of this subsection (e), "course of conduct" is defined as two or more separate instances of misrepresentation occurring during any twelve month period.