The examining board may grant a certificate to any applicant who is the holder of a certificate or license to practice as a certified public accountant issued under the laws of any other state or foreign country. The applicant must also establish his or her substantial equivalence of the qualifications required under s. 442.04. The sufficiency of the substantial equivalence shall be judged by the examining board. Upon denial of a certificate under this subsection the examining board shall notify the applicant in writing of the decision, stating the reason for denial and that the applicant has the right to a hearing if a written request is filed with the examining board within 30 days after the notice of denial. Service of the notice of denial may be made by mail addressed to the applicant at the latest address filed by the applicant in writing with the examining board. Service by mail is complete on the date of mailing.