The owner of any flock of poultry may register such flock with the Commissioner of Agriculture for the purpose of placing such flock in the National Poultry Improvement Plan program. The annual fee to register a flock of less than one hundred fowls shall be twenty-five dollars and for any flock of one hundred or more fowls, fifty dollars. The commissioner shall waive any such registration fee for flock owners who are eighteen years of age or younger. The owner of any registered flock shall be responsible for all laboratory fees charged for any testing necessary to comply with the National Poultry Improvement Plan program standards or to qualify such flock for an avian disease status. Nothing in this section shall be construed to apply to any flock tested solely to qualify for entry into fairs, shows or exhibitions. Whenever a flock fails to comply with the National Poultry Improvement Plan program standards or fails to qualify for an avian disease status, the owner of such flock shall not sell or offer for sale any poultry until such standards or status are met, as determined by the commissioner or the commissioner’s designated agent. The commissioner may adopt regulations, in accordance with the provisions of chapter 54, to implement the provisions of this section.