How do you authorise someone to act at a transport or customs office?

This question is specifically about “How do you authorise someone to act at a transport or customs office”, so it covers both the requirements attached to this document set and the order the steps must follow. Vehicle export declarations must carry the customs tariff code matching the body type. High-resolution photos of seals and signatures help when the destination asks for re-verification. Note who signed each certification and on what date for later reference. Where the document contains an equipment or specification table, keep the table layout so a reviewer can compare it against the original. The annual road-tax receipt evidences registration status, so include the latest year. Inspection history and odometer readings should be translated in full, as they feed the import valuation. If a mortgage is registered over the vehicle, attach the release evidence or the transfer will stall. For import and export cases the customs papers and the registration papers must identify the same vehicle beyond doubt. After certification, scan the full set before it leaves your hands. Possessor and legal owner are separate fields and must be translated distinctly. Before starting, confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then check that names are spelled identically to the passport or ID card on every page, then verify the source document is still within any validity window the recipient applies. For documents going abroad, include international shipping time in the plan. With a fixed filing date, count backwards from it and book each certification step in reverse. The terms that frame this page are authorise · someone · transport · customs. The point to fix before starting is the real deadline, so the steps can be scheduled backwards from it. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. Transport authorities often apply a validity window to certified documents; confirm it will still be valid on the filing date. Acting for someone else at a transport office or in customs formalities requires a written power of attorney in the prescribed form with the stamp duty the law requires. If the principal is abroad, the document should be signed before a Royal Thai Embassy officer or a competent certifying officer in that country, then translated and certified before use in Thailand. For documents executed in Thailand, there is no common-law notary public; signature certification is performed by a Notarial Services Attorney licensed under Lawyers Council of Thailand rules. For overseas use of a Thai transport or customs document the sequence is: obtain the original or the issuer-certified copy, translate it into the target language, have the translation certified by the Legalisation Division of the Department of Consular Affairs, MFA, and then legalise it at the destination country's embassy or consulate where that country requires it. Always obtain the destination's written requirements first. ILC handles documents only — translation, certified translation, arranging notarial-attorney certification and running legalisation at the Department of Consular Affairs and embassies. It is not a customs broker, not a freight forwarder and not a law firm; it does not issue import or export licences, does not file customs declarations, does not sit driving tests for clients and guarantees no agency decision. Cost and lead time depend on page count, target language, the number of line items in the document and the certification steps required, so every file is quoted before work starts. Send scans of every page together with the written requirements from the transport authority, customs office or receiving agency via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

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