# Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery, Division 4.2.3: Unavailability of gaseous fuel when operating in a dual-fuel mode

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

In order to permit the non-road mobile machinery to move to a position of safety, upon detection of an empty gaseous fuel tank, or of a malfunctioning gas supply system:
(a) Dual-fuel engines of Types 1A and 2A shall activate the service mode;
(b) Dual-fuel engines of Types 1B, 2B and 3B shall operate in liquid mode.

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VIII/division/4/division/4.2/division/4.2.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VIII/division-4/division-4.2/division-4.2.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.