# Commission Regulation (EU) No 582/2011 of 25 May 2011 implementing and amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with respect to emissions from heavy duty vehicles (Euro VI) and amending Annexes I and III to Directive 2007/46/EC of the European Parliament and of the Council (Text with EEA relevance), Division 4.6.6

Extent: E+W+S+N.I.

The electrical power to the PEMS system shall be supplied by an external power supply unit, and not from a source that draws its energy either directly or indirectly from the engine under test, except in the cases set out in points 4.6.6.1 and 4.6.6.2.

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Source: https://www.legislation.gov.uk/eur/2011/582/annex/II/division/4/division/4.6/division/4.6.6 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-582/annex-II/division-4/division-4.6/division-4.6.6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.