All commercial potato growers are required to obtain certification documents or tags to verify that all seed potatoes planted in this state comply with the terms of this chapter. Growers must retain certification documents for at least three years and provide them to the department within thirty days of a written request. Such documents shall include the total weight of certified seed potatoes and shall be issued by an official certifying agency in the state or country of origin. Falsification of seed potato documents shall subject the grower to penalties provided in law.