The secretary shall make such rules and regulations as are necessary to carry out the provisions of this act. The rules and regulations shall include, but not be limited to, provisions establishing the basis for classification of water supply systems and wastewater treatment facilities, qualifications of applicants, procedures for examination of candidates, provisions for renewal of certificates, provisions for revocation of certificates, provisions prescribing the amount and collection of fees for the examination of applicants and the issuance of certificates and such other provisions as may be necessary for the administration of this act.