Iowa Code § 203C.9
The department is authorized, upon its own motion, or upon receipt of written application, to amend any license previously issued by it, to change or modify the provisions as to the type and quantity of agricultural products which may be stored in the warehouse or warehouses in respect to which the license was originally issued. Application for amendments to licenses shall include the same information, except as to the financial condition of the applicant, as required by section 203C.7 to be included in an original application. Applications for amendments of licenses shall be considered by the department on the same basis as applications for original licenses, and except as otherwise provided in this chapter, a license when amended shall have the same status, as of the date of the amendment, as though originally issued as amended.
Iowa Code § 203C.9