License renewal every two years and when licenses can be denied

(a) Every person holding a license to practice any occupation specified in section 321-13(a)(1) shall reregister with the department of health every other year in accordance with the rules of the department, before February 1 except where superseded by federal law, and shall pay a reregistration fee. The failure, neglect, or refusal of any person holding a license to reregister or pay the reregistration fee, after thirty days of delinquency, shall constitute a forfeiture of the person's license; provided that the license shall be restored upon written application therefor together with a payment of all delinquent fees and an additional late reregistration fee that may be established by the director of health. All fees collected pursuant to this section shall be deposited into the sanitation and environmental health special fund established under section 321-27. (b) The department shall suspend, refuse to renew, reinstate, or restore, or deny any license or application if the department has received certification from the child support enforcement agency pursuant to the terms of section 576D-13 that the licensee or applicant is not in compliance with an order of support as defined in section 576D-1 or has failed to comply with a subpoena or warrant relating to a paternity or child support proceeding. Unless otherwise provided by law, the department shall grant, renew, restore, or reinstate a license only upon receipt of an authorization from the child support enforcement agency, office of child support hearings, or family court.