Are there any specific requirements or procedures to follow for a dual citizen with an expired US passport to renew their travel document?

Yes, a dual citizen with an expired US passport can renew their travel document by following the standard passport renewal process for US citizens. This typically involves completing a passport renewal application, providing proof of citizenship, submitting a passport photo, and paying the renewal fee. It is recommended to check the specific requirements and procedures on the official website of the US Department of State before applying for a passport renewal.