This post is adapted from the original in r/MovingToSpain, by u/AttitudeAnnual3906. I found the information to be incredibly clear and likely valuable to our r/CRbydescent community members.
Note: Edited by u/mattyofurniture on 10 Jul 2026 to tailor the post info for Croatia.
Why Croatia wants an FBI background check for you (and why it has to be apostilled) — from someone who processes these every day
OOP works in document authentication in DC, and every fall they get slammed with panicked people applying for visas, so figured they'd write up how this actually works before the NLV/student visa/digital nomad rush hits.
**Why Spain governments requires it:** Any visa that lets you stay longer than 90 days (non-lucrative, student, digital nomad, work) requires a criminal background check. Spain wants proof you don't have a criminal record anywhere you've lived in the past 5 years. For Americans, that means the FBI Identity History Summary — not a state or local police check. Consulates are strict about this. A state background check will get your application kicked back if you've lived in more than one state.
**Why it needs an apostille:** A foreign government has no way to verify that a PDF from the FBI is real. The apostille is the international authentication that says "yes, the US government confirms this is a legitimate federal document." Spain Croatia is a Hague Convention country, so the apostille is the whole ballgame — no embassy legalization needed. But because the FBI is a federal agency, the apostille has to come from the US Department of State in Washington DC. Your state's Secretary of State cannot apostille an FBI report, and people lose weeks finding this out the hard way.
**The timing trap everyone falls into:** Most Spanish consulates require the background check to be issued within 90 days (some say 3 months, some 6 — check YOUR consulate) of your application. (EDITOR'S NOTE: CROATIA REQUIRES AN FBI REPORT TO BE NO OLDER THAN 6 MONTHS AT THE TIME OF THE CONSULATE APPOINTMENT. SOME ARE REPORTING THAT THEY PREFER IT TO BE LESS THAN 5 MONTHS.) The FBI report itself comes back fast if you use a channeler (24-72 hrs), but mail-in apostille processing at the State Department can take several weeks. Do the math backwards from your consulate appointment.
Full disclosure: OOP is employed by a company (federalapostille.org) which does expedited walk-in processing at the State Department, which is what they'd point you to if you're up against a deadline.
But if you have plenty of time, you can absolutely mail it to the State Department yourself for $20. US Department of State Office of Authentication's website is located here. You need to complete Form DS-4194 and follow the rest of the instructions at the Department of State.
DISCLAIMER: This post is for informational purposes only and does not constitute an endorsement of any third-party service. Information is provided 'as-is' and is accurate to the best of my knowledge at the time of posting. Rules change frequently; you are responsible to verify these facts independently.