# Commission Regulation (EU) No 406/2010 of 26 April 2010 implementing Regulation (EC) No 79/2009 of the European Parliament and of the Council on type-approval of hydrogen-powered motor vehicles (Text with EEA relevance), Division 4.7


The flow of fuel to other hydrogen conversion system(s) shall be secured by an automatic valve. This automatic valve shall be operated such that the hydrogen supply to other hydrogen conversion system(s) is cut off when the respective hydrogen conversion system is switched off, irrespective of the position of the activation switch, and shall remain so until the hydrogen conversion system is required to operate.

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Source: https://www.legislation.gov.uk/eur/2010/406/annex/IV/part/1/division/4/division/4.7 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-406/annex-IV/part-1/division-4/division-4.7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.