- Apostille
- A single-page certificate issued under the 1961 Hague Convention by a designated Competent Authority (in Thailand, the MFA Department of Consular Affairs) that authenticates the signature, seal, and capacity of the public official who signed the underlying public document. Eliminates the need for embassy legalisation in the 130 contracting parties.
- Notarial Services Attorney (NSA)
- A Thai lawyer who has completed the Lawyers Council of Thailand notarial training programme and is entered on the official notarial roster. Only NSAs may execute notarial acts in the Kingdom; foreign notaries public have no jurisdiction inside Thailand.
- MFA legalisation
- Authentication by the Ministry of Foreign Affairs Department of Consular Affairs, Chaeng Watthana, Bangkok. Required as the step between Thai notarisation and any foreign-embassy authentication, and as the source step for the Apostille.
- Embassy legalisation
- The final authentication step performed by the destination country's embassy or consulate in Bangkok. Required for documents destined for non-Hague members (China mainland, UAE, Saudi Arabia, Qatar, Kuwait, Vietnam for some document types).
- Kor Ror (คร.)
- The series of original Thai civil registry forms — kor ror 2 (marriage), kor ror 3 (marriage certificate), kor ror 22 (divorce), kor ror 6 (family book) — issued by the local amphur (district office). Only kor ror originals or amphur-certified copies are accepted for legalisation.
- DBD affidavit
- Corporate certificate issued by the Department of Business Development confirming a Thai juristic person's directors, registered capital, objectives and authorised signatories. Must be dated within 30 days of submission for notarial use.
- Certified translation
- A translation accompanied by a signed translator's affidavit listing the source/target language pair, translator credential number, and a dated statement of fidelity. In Thailand this is delivered on agency letterhead with the corporate seal.
- NAATI
- National Accreditation Authority for Translators and Interpreters (Australia). The mandatory translator credential for documents submitted to Australian Home Affairs, state births-deaths-marriages registries, AHPRA, and most Australian universities.
- Sworn translation
- A translation prepared by a court-sworn translator (notably required in Germany, France, Italy, Spain, Brazil). Thailand has no equivalent statutory framework; the closest is the MoJ-translator roster used for court proceedings.
- Police Clearance Certificate (PCC)
- Issued by the Royal Thai Police, Special Branch Bureau. Requires a ten-fingerprint card taken at a Royal Thai Police station; standard turnaround 14–21 business days.
- PDPA
- Thailand's Personal Data Protection Act, B.E. 2562 (2019). Every client file is held in a case-numbered audit trail with explicit consent, retention period, and right-of-erasure procedures.
- Express track
- Same-day or 24-hour processing tier available for MFA legalisation, Apostille, and selected embassy chains. Subject to MFA queue availability and a per-document surcharge.
