France

Short answer: this is genuinely different from every other country in this library, and not in a good way. France’s own consular guidance specifically names Colorado (along with Pennsylvania, DC, and Texas) as a state whose no-officiant marriage format doesn’t satisfy French law, and says so explicitly, not as a general caution but as a named, specific rule.

The core problem: French law wants proof of consent from a third party

French law requires that a marriage’s consent be established in front of, and attested by, a third-party officiant. Colorado’s self-solemnization, where the two of you are legally each other’s officiant, doesn’t provide that. The French Embassy’s own published guidance for Americans is direct about this:

“Les États de Pennsylvanie, du Colorado et le district de Columbia autorisent les mariages « auto-célébrés » par l’un ou les deux époux… Or, ces unions sont irrégulières en France, au motif que le consentement du ou des époux ne peut être prouvé en l’absence d’un tiers officiant.”

(Translation: Pennsylvania, Colorado, and DC allow marriages “self-celebrated” by one or both spouses… These unions are irregular in France, on the grounds that the spouses’ consent cannot be proven in the absence of a third-party officiant.)

The consequence, in the Embassy’s own words: these marriages are systematically put on hold for transcription and referred to the public prosecutor.

Quoted directly from the French Embassy's published guidance for Americans as of 2026. This is exactly the kind of official, specific, currently-in-force rule this site treats as reliable enough to quote directly, rather than a general caution we're inferring ourselves.

What that actually means in practice

Two things stay separate here. Getting the wording right matters, because only one of them is actually affected:

• Between the two of you, and regarding any children, your marriage is still recognized. France’s Code civil generally requires recognizing a marriage validly performed under the law of the place it happened, and that basic recognition isn’t what’s at issue.
• Full legal effect in France (a spouse visa, tax benefits as a married couple, updating French civil status records and the livret de famille) requires transcription, and that’s exactly the step a Colorado self-solemnized marriage gets flagged for.

Concretely, that means: sursis à transcription (the transcription is suspended) and saisine du Parquet de Nantes (the file is referred to the public prosecutor at the Tribunal Judiciaire de Nantes, which has civil-status oversight for all French consular acts worldwide). The prosecutor then has up to six months to rule, which can include additional interviews of both spouses through police or gendarmerie. That six-month window applies whether or not you obtained a certificat de capacité à mariage beforehand; getting one doesn’t shortcut this specific issue, because the referral is triggered by the marriage’s format (no officiant), not by missing paperwork. Outcomes range from transcription eventually being granted, to the prosecutor opposing it, to contested proceedings that specialist French family lawyers describe running 24 to 30 months if it ends up in court.

Get the certificat de capacité à mariage (CCAM) anyway

Separately from all of the above, French law requires any French citizen marrying abroad to obtain a certificat de capacité à mariage (CCAM) from the French embassy or consulate in the country where the wedding happens, before the wedding. It involves a 10-day public posting (publication des bans) at your French partner’s local mairie for anyone to raise an objection. This doesn’t solve the self-solemnization problem above, but skipping it adds a second, separate issue on top of the first one, so get it regardless.

CCAM processing and *publication des bans* timelines can vary by consulate and by season. Start this well before you fly, directly through the French embassy or consulate with jurisdiction over where you'll marry, not through Colorado's county clerk.

One practical option worth knowing about

Colorado doesn’t require self-solemnization; it just permits it as an option. A couple can still choose to have a Colorado-authorized officiant (a member of the clergy, a judge, or someone Colorado recognizes for this purpose) preside over the ceremony instead, which puts a third party in the room attesting to consent, exactly the thing French law is checking for. Whether that fully avoids a sursis à transcription in your specific case is a question for your own case, not something this page can guarantee, but it’s a real, available choice, not a hypothetical one. If a French citizen’s timeline depends on quick, uncomplicated transcription (a spouse visa application, say), this is worth raising directly with a French avocat before you decide how to structure the ceremony itself, not after.

The takeaway

If either of you is a French citizen and self-solemnization (no officiant) is part of the plan, go in knowing this isn’t a “yes, with some optional paperwork” situation the way it is for the other countries in this library. Get the CCAM regardless, keep thorough documentation of your relationship and the ceremony, and strongly consider a French avocat experienced in mariage à l’étranger and consular transcription, especially if timing matters. See the apostille process for the Colorado-side document you’ll eventually submit for transcription, certificate of no impediment for how the CCAM compares to what other countries ask for, and does it matter what country we’re from for the broader picture.