Marriage in Thailand may differ slightly from what you are accustomed to in your country. Following are some general specifications and directives to bear in mind:

1. Both parties must be at least 17 years old and have no near-blood relatives, according to the law. Both parties must present their passports or other forms of government-issued identification, as well as an affidavit of freedom to marry issued by their embassy or consulate in Thailand.

2. Ceremony: The wedding ceremony may be a secular ceremony officiated by a registrar or a traditional Buddhist ritual as practiced in Thailand. At least two witnesses must be present for the ceremony to take place.

3. Registration: Within 15 days of the wedding ceremony, the marriage must be registered with the neighborhood Amphur (district office). A marriage certificate in Thai will be issued by the Amphur, which can be translated into English for use abroad.

4. Additional requirements: If one or both parties had previously been married, they must present documentation of the divorce or a copy of the deceased spouse’s death certificate. If either party is under 20 years old, documented parental approval is required.

5. Foreigners: Foreigners getting married in Thailand must present supplementary papers, such as a letter of affirmation from their embassy or consulate in Thailand confirming that they are permitted to get married.

To make sure that all legal criteria are met and that the process runs smoothly, it is advised to speak with a licensed marriage lawyer or agent in Thailand.