Article 21 1.

an information document, including a list of reference fuels and, where requested by the manufacturer, any other specified fuels, fuel mixtures or fuel emulsions referred to in Article 25(2) and described in accordance with the delegated acts referred to in Article 25(4) (‘the information document’);

all relevant data, drawings, photographs and other information relating to the engine type or, where applicable, the parent engine;

any additional information requested by the approval authority in the context of the EU type-approval application procedure.