Recital 9

(9)The manufacturing of low carbon vehicles, personal mobility devices and rail rolling stock and infrastructure depends on components that play a key role in reducing greenhouse gas (GHG) emissions, or, in the case of rail, that are essential to the environmental performance, operation and functioning over the lifetime of Taxonomy-aligned trains and rail infrastructure, but are often manufactured by undertakings that do not assemble those vehicles or other means of transportation. To ensure that the role of those undertakings and of the components they manufacture in climate change mitigation is duly recognised, the manufacturing of the components that are essential for delivering and improving the environmental performance of the low carbon vehicle or other means of transportation should be included as a distinct economic activity in Delegated Regulation (EU) 2021/2139. Technical screening criteria for components which are decisive for environmental performance should be included. For vehicles, that includes, in particular, controllers, transformers, electric motors, charge ports and chargers, DC/DC converters, power inverters, alternators, controller units, regenerative braking systems, brakes with drag reduction technologies, thermal management systems, transmission system, hydrogen storing and fuelling systems, electronics when necessary for the operations of the powertrains, drivetrains, ‘best-in-class’ suspension systems leading to energy efficiency improvements, any auxiliaries when these are necessary for low-carbon vehicles and when these are substantially more energy efficient than alternatives, active aero features on low-carbon vehicles reducing air drag, and trailers that incorporate energy savings technologies such as a combination of regenerative braking or aerodynamic improvements. For rail, that includes, in particular, rail constituents as set out in Annex I to Directive (EU) 2016/797 of the European Parliament and of the Council ⁵ .