The Secretary may suspend or revoke the certificate of any registered dealer or service person when he or she is satisfied after a hearing, upon 20 days' notice to the registrant, that the registrant has violated any provision of this chapter or any rule issued pursuant to this chapter, or when a person licensed pursuant to this section has been convicted by a court of violating any law relating to weights and measures. (Added 1967, No. 102, § 58, eff. April 14, 1967; amended 1991, No. 227 (Adj. Sess.), §§ 6, 7; 2003, No. 42, § 2, eff. May 27, 2003.)