Iowa Code § 718.5: Falsifying public documents.

A person who, having no right or authority to do so, makes or alters any public document, or any instrument which purports to be a public document, or who possesses a seal or any counterfeit seal of the state or of any of its subdivisions, or of any officer, employee, or agency of the state or of any of its subdivisions, commits a class “D” felony.