Language pairs
Direction oneIranian Persian ⇆ English
Also indexed as Farsi (ISO 639-3 pes). Both directions, with first-language standing in both.
Direction twoDari → English
Also indexed as Afghan Persian (ISO 639-3 prs). Into English only; a Dari target is not work I take on.
Direction threeTajik → English
Also indexed as Tajik Persian (ISO 639-3 tgk); Persian in Cyrillic script. Into English only; a Tajik target is not offered.
Arabic within Persian texts
Arabic is not offered as a source language. What is covered is the Arabic found inside Persian texts: religious passages and the fixed formulae of civil and official records, and the quotation and verse that run through classical Persian literature. Such passages are translated as part of the text they belong to. A source that is wholly in Arabic is not work I take on.