Arabic is the official record
Algeria administers itself in Arabic, so an English certificate needs an Arabic text with it before it can be filed. The Arabic is built sheet for sheet, keeping headings and reference numbers where they sit on your page, so a reader can move between the two without hunting for a line.
What consulates take
The accepted form is a certified translation that consulates and ministries recognise, finished with a signed certificate of accuracy. That page names the translator, both languages and the date. Without it the Arabic text has no author on record, and an author on record is what an official desk is really after.
The files that travel
Family records, inheritance papers, nationality files and school equivalence requests make up most of this traffic, along with employment letters. Each is handled in the same way, and a single certificate covers the bundle. A longer file simply runs to more sheets and takes a little more time to prepare.
Paying by the sheet
The rate is about £25 per page of the source, and the count comes from your own scan. That means a page dense with stamps costs what a plain one costs. Standard turnaround is 3-5 business days, and the express lane returns work in 48 hours when a date has already been set.
Protect the record you hold
Never send the only copy of a civil record away for translation work, because replacing one means ordering it again from the start. A clear scan is enough. Reading Register Office at Civic Offices, Bridge Street, Reading RG1 2LU issues certified copies of birth, marriage and death records, and it works by post.