The Iowa Application for Amended Certificate [490.1504] is a form used by Iowa businesses to request an amendment to their current business certificate. It can be used to update contact information, change the name of the business, or add additional services or products. There are two types of Iowa Application for Amended Certificate [490.1504] forms: the standard form and the simplified form. The standard form is used to amend any type of business certificate, while the simplified form is for specific types of certificates, such as an assumed name certificate, a foreign corporation certificate, or a partnership certificate. The application must be filled out in its entirety and submitted with the applicable fee to the Iowa Secretary of State.