Iowa Code § 462A.37: Number assigned — special signs.

The commission, upon granting any such application, shall issue to the applicant a special certificate containing the applicant’s name and address, the general distinguishing number assigned to the applicant, the word “manufacturer” or “dealer”, and such other information as the commission may prescribe. The manufacturer or dealer shall have the number so awarded printed upon or attached to a removable sign or signs to be temporarily but firmly mounted upon or attached to the vessel being used, and the display must meet the requirements of this chapter and the rules and regulations of the commission.