Updated October 2026. Algeria joined the Hague Apostille Convention, effective July 9, 2026. US documents going to Algeria no longer need embassy or consulate legalization. They need an apostille instead, which is a single certificate attached by the US authority that oversees the document. Because the change is recent, some Algerian offices may still ask for the old process, so confirm with the receiving office before you start. Which office issues the apostille? It depends