How Do I Certify My Marriage Certificate for Thai Immigration?

@Vivian ******

I messaged you about your question when your earlier post was pending before I deleted the post.

Don’t know your citizenship but can tell you that by law for America, an embassy can not verify, issue, certify or otherwise issue any affidavit associated with the verification of a marriage license as that is a vital record maintained by the states. Federal government has no access or authority to marriage licenses.

What one can do is sign a boilerplate affidavit that says you are legally married as of a certain date but of course the embassy is simply swearing that a US citizen showed a valid passport to them. It’s not a certification of anything. Thai immigration does take this as proof because my wife has followed me for three years on my retirement extension as she’s not over age 50 and they still ask for this useless document. Good luck

Your Embassy is the place who knows and can help you with this certification.