Documents typically required
For each person in the lineage from the ancestor to the applicant:
- Birth certificate — certified copy from the state (or county, where the state accepts it) registrar.
- Marriage certificate — certified copy from the state registrar or county clerk.
- Death certificate where applicable.
- Divorce decree for any dissolved marriage in the line — clerk-certified copy of the final judgment.
- Naturalization record of the emigrant ancestor — a Certificate of Naturalization or a USCIS/NARA “no record” letter, both federal documents. Some consulates accept court naturalization records (certified by the court, which may be a state or federal court).
- Name-change records or court orders explaining discrepancies.
Every state document goes to its state’s competent authority; the naturalization record goes to the U.S. Department of State. See state or federal?.
Country-by-country notes
Italy (iure sanguinis). Consulates require apostilled certified copies (“long form” or “vault” copies are commonly requested) with translations. Several consulates specify that U.S. vital records be issued recently (often within six months for the applicant’s own records). Naturalization records must come from USCIS, NARA or the naturalizing court and be apostilled. 2025 legislative changes narrowed eligibility to applicants with a parent or grandparent born in Italy for most new cases — check the consulate’s current rules before assembling documents. Translations are typically reviewed or certified by the consulate.
Ireland (Foreign Births Register). Original or certified civil records with apostilles are required for the applicant and the Irish-born grandparent chain; no translation needed for English documents. Processing is centralized in Dublin.
Poland (confirmation of citizenship). Polish voivodeship offices require apostilled U.S. records plus sworn translations into Polish (tłumacz przysięgły). Older emigration records often need to be traced in Polish archives as well.
Mexico (nationality by birth to a Mexican parent). Registration at a Mexican consulate in the U.S. of a child born in the U.S. to a Mexican parent usually requires an apostilled U.S. birth certificate; consulates often require a certified copy issued within a recent window. A perito traductor translation is required when registering in Mexico.
Spain (Ley de Memoria Democrática, descendants). The 2022 law created a window (extended through 2025 for applications) for grandchildren of Spanish nationals; apostilled U.S. birth and marriage certificates with sworn translations were required. New applications under the window closed; other routes (e.g. option after residency, or children of Spanish nationals) continue with the same apostille requirements.
Portugal. Children and grandchildren of Portuguese citizens register with the Central Registry (Conservatória dos Registos Centrais) via consulates; apostilled U.S. records with Portuguese translations certified by a consulate or notary.
Germany (Section 5 StAG declarations, restitution under Article 116). Apostilles are commonly accepted but some consulates waive them for U.S. records; translations into German are required for most documents.
Sequencing a citizenship file
- Identify every document and which state or federal office issues the apostille.
- Order fresh certified copies — most consulates reject copies older than their window.
- Request the federal apostille on naturalization records first; it takes longest.
- Apostille state records in parallel, state by state.
- Translate after apostilles are attached, with the translator the consulate recognizes.
- Check recency windows against the appointment date.
Where documents come from
Families scattered across states produce documents from five or six competent authorities. A birth in Florida, a marriage in New York and a death in Illinois mean three separate requests. For the Florida records, a statewide Florida apostille service that files in Tallahassee can retrieve certified copies and file the apostille; for the naturalization certificate, a service that submits federal documents to the Office of Authentications on your behalf submits to the Office of Authentications.
Frequently asked questions
Do I need an apostille on every single document?
Nearly always, including death and divorce records in the line. Some consulates waive apostilles on documents they can verify themselves, but assume every U.S. record needs one.
Can I use a 'short form' birth certificate?
Consulates usually require the long-form (full) certified copy showing parents’ details. Short-form or wallet-size certificates are frequently refused.
Do apostilles for citizenship expire?
The apostille does not, but consulates often require the certified copy to have been issued within 6–12 months of the appointment.
Where do I apostille a naturalization record from a court?
If the court was a state court, with that state’s competent authority. If federal (U.S. District Court), with the U.S. Department of State.
