The language Brazil requires
A certified translation into Portuguese is required for documents used in Brazil, so an English record issued in Northern Ireland needs a Portuguese version alongside it before it can be filed. A certified translation into Portuguese in Belfast changes nothing about the source document — the English text stays as it was issued, and the certification belongs to the new version alone.
Anatomy of the certificate of accuracy
The certificate is deliberately plain. It names the document translated, states the direction of the work, declares the rendering complete and faithful, and is signed and dated by the translator who wrote it. Because a person and a date appear on it, a reader in Brazil can see at a glance who is answerable for the wording — which is exactly what an unsigned translation, however good, cannot show anyone.
Which copy to translate
Northern Ireland runs its own civil registration, so a birth, marriage or death registered in Belfast comes from the General Register Office for Northern Ireland (GRONI) at Colby House, Stranmillis Court, Belfast BT9 5RR rather than from any registry in England or Wales. That office operates by post, and ordering a current copy from it early removes the commonest source of delay in the whole errand.
Cost, pages and timing
Pricing follows the page count at roughly £25 a side, so the bill can be worked out on paper before anything starts. Standard production runs 2–3 business days, and the express route closes that gap to 24 hours at a higher rate per page, which means speed costs noticeably more on a thick bundle than on a single certificate. Notarisation can be added when a file calls for it.
Keeping the set together
File the Portuguese text, its certificate and the source document as one set; split up, the certificate refers to something the reader in front of it cannot see. Keeping a scan of the signed page is worth the minute it takes, because a second recipient can then be handed an identical set later without spellings of names or dates drifting quietly between versions.