Oman is not a member of the Hague Convention countries. Four main steps are needed to achieve the legalization of the Omann embassy. The apostille is the last step for all the countries participating in The Hague.
Oman is not a country in The Hague. For this reason, your document must also be certified by the U.S. Government and legalized by the Omann embassy.
So, if you have an Oman birth certificate that was issued in Oman and want to use in USA, you must send your birth certificate to Oman, obtain certification from the Omann Department of Foreign Affairs and legalize it at the USA Embassy in Oman. I am a US citizen and was born abroad in Oman.
Q: How can I get an apostille for my birth certificate that can be used in Mexico?
A: You must contact the U.S. Department of State Office of Vital Records in Washington, D.C. They issue you a certified birth certificate and then send it to the U.S. Department of State’s Office of Authentication, to obtain the apostille for use in Mexico.
