The legal requirements of notarizations vary state-to-state and sometimes different types of notarizations have different standards for acceptable ID. It’s important to know the legal specifics of your state and the transaction requirements of identification. In general, the following forms of identification are acceptable as long as they are valid and unexpired: State-issued driver’s license or photo ID, Military ID, The U.S. or Foreign Passport, Certificate of citizenship, naturalization, or alien registration.