Below are some of the requirements from IOWA Secretary of State to Apostille documents or issue a Certificate of Authentication:
Vital Records: Certified copies of birth, death, or marriage certificates may be obtained from the state office of vital records
Court Documents: Must be certified Copies issued by the court.
Corporate Documents: Must be certified Copies issued by the Secretary of state.
Educational documents: Preferably Notarized by the School or University.
All other documents Must be Notarized in the state of Iowa.
Foreign Language Documents: Acceptable for Apostille as long as the Notarization is in English.