art_3__para_1

1. For the purposes of this Regulation, the following definitions shall apply: ‘hydrogen-powered vehicle’ means any motor vehicle that uses hydrogen as fuel to propel the vehicle; ‘propulsion system’ means the internal combustion engine or fuel cell system used to propel the vehicle; ‘hydrogen component’ means the hydrogen container and all other parts of the hydrogen-powered vehicle that are in direct contact with hydrogen or which form part of a hydrogen system; ‘hydrogen system’ means an assembly of hydrogen components and connecting parts fitted on hydrogen-powered vehicles, excluding the propulsion systems or auxiliary power units; ‘maximum allowable working pressure’ (MAWP) means the maximum pressure to which a component is designed to be subjected to and which is the basis for determining the strength of the component under consideration; ‘nominal working pressure’ (NWP) means, as regards containers, the settled pressure at a uniform temperature of 288K (15 °C) for a full container, or as regards other components, the pressure level at which a component typically operates; ‘inner tank’ means the part of the hydrogen container designed to use liquid hydrogen that contains the cryogenic hydrogen.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.