What is the process for authenticating a NYC diploma at the Thai embassy or consulate in the USA?

To authenticate your NYC diploma through the Thai embassy or consulate, you first need to have it notarized by a notary in New York. After notarization, you'll typically be required to send the diploma to the U.S. Department of State for authentication. Only after these steps can you forward the document to the Thai embassy for the final authentication process. It is advisable to look for a reliable service in New York that specializes in document authentication and can assist with mailing to the relevant authorities.