The department:
(1) may enter the premises of a licensed firm, nursery, plant dealer, or landscape service during regular business hours for the purpose of inspecting nursery stock or other materials for possible plant pests or for determining licensure compliance; and
(2) shall, pursuant to rules promulgated by the department, determine the schedule, the need for inspections based on complaints received and the department's assessment of risk to the state from potential plant pests, and the expected amount of time for the inspections.