21—49.5 (200A) Distribution statement. Any bulk dry animal nutrient distributed in this state must be accompanied by a form, furnished by the department, which contains all information required by Iowa Code section 200A.7. The distribution statement must be provided to the purchaser before possession of bulk dry animal nutrient is transferred to the purchaser and receipt of the distribution statement must be acknowledged by signature or initials of the purchaser. The distributor shall maintain a copy of the distribution statement for one year.