The current position:

DUAL FUEL ENGINE

release time:2015-12-03 10:12 | effective date:2015-12-03 10:38:27
1 This Guideline is applicable to the approval and product inspection of propulsion and drive engines used on ships and mobile units as well as other marine dual fuel engines related to classification.
2 Dual fuel engines used on small crafts less than 20m in length may also be surveyed and tested with reference to the requirements of the Guidelines in addition to compliance with the applicable domestic regulatory requirements.
3 Single gas fuel engines may be surveyed with reference to the Guidelines.
4 The gas used as fuel described in the Guidelines refers to natural gas only. Where other gas fuels are intended to be used, the risks thereof are to be taken into account.
M22DUAL FUEL ENGINE clean.pdf
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