(a) Pulp is the soft, spongy pith inside the stem of a plant such as wood, straw, sugarcane, or other natural plant sources.(b) The ingredient is used or intended for use as a constituent of food packaging containers.(c) The ingredient is used in paper and paperboard made by conventional paper-making processes at levels not to exceed good manufacturing practice.(d) Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.