Which U.S. Documents Need Apostilles for Dual Citizenship by Descent?

Why this list is only a general overview

There is no universal "documents for citizenship by descent" checklist that applies the same way to every country or every case. Each consulate, municipality, or citizenship authority sets its own requirements, which can also change over time. What is constant is the U.S. authentication mechanics: once you know which document you need, there is a specific authority responsible for apostilling it, and that authority depends on who issued the document, not on the destination country.

State vital records: the most common category

Most ancestry files include at least one document issued by a state vital records office: birth, marriage, death, or divorce. These records are always apostilled by the state where the event was recorded, regardless of where you currently live or where other family members in the file currently live. If an ancestor was born in one state and married in another, each record follows its own state's process independently.

Naturalization records and federal documents

When the file includes a certificate of naturalization or a document held by NARA (the National Archives), the route changes: no state apostilles these, the U.S. Department of State does, as the federal apostille authority. Preparing a naturalization certificate for this process generally requires a step that state records don't: an in-person appointment at a local USCIS office, where you present the original along with a photocopy to request what USCIS calls a "Certified True Copy" (their term for what the State Department calls authentication). Only after obtaining that certified copy can the document be sent for federal apostille.

It's worth noting that a living person's own naturalization certificate generally isn't part of the federal court record holdings NARA maintains routinely. For genealogical research into historical naturalization records, USCIS runs a separate Genealogy Program, which is a different process from obtaining a certified copy of a current naturalization certificate.

Files with documents from more than one state

It's common for an ancestry case to combine documents from different states: a grandparent's birth certificate from one state, a parent's marriage certificate from another. There's no combined process that apostilles multiple states at once; each document follows the process of the state that issued it, entirely independently of the others. We go into more detail on organizing these files in our guide to multi-state citizenship documents.

How to tell which authority applies to each document

The site's general rule applies here too: ask who issued the document, not which country it's headed to or where you live. We explain this rule in more detail, with further examples, in our guide to state vs. federal apostille. If your case is specifically about Italian citizenship, we have dedicated guides on vital records for Italian dual citizenship and, if your documents are from Florida, on the Florida documents checklist for Italian citizenship. If any of your documents is a naturalization certificate or a NARA or USCIS record, also see our dedicated guide on naturalization, NARA, and USCIS.

Certified copies, not photocopies

Regardless of the document category, apostille requires an original certified copy issued by the correct authority, the state vital records office for state documents, or the USCIS Certified True Copy step for naturalization documents. A photocopy, even a notarized one, is generally not eligible for apostille.

We can help you identify the correct authority for each document on your list, once you've confirmed it with your consulate, municipality, or citizenship professional. See our dual citizenship apostille page for more on how we coordinate multi-document files.