Forretningsordenens artikel 102, stk. 1, siger, at alle Europa-Parlamentets officielle dokumenter, der danner grundlag for Parlamentets forhandlinger og afgørelser, skal være affattet på de officielle sprog.
Rule 103 of the Rules of Procedure on the distribution of documents states that the documents on which Parliament's debates and decisions are based must be printed and distributed to the Members, and Rule 102(1) states that the European Parliament's documents must be prepared in the official languages.