7 Time of replacement of an engine
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Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC.1/Circular.795 Rev.6 – Unified Interpretations to MARPOL Annex VI – (10 June 2022) - Annex – Unified Interpretations to MARPOL Annex VI - 7 Time of replacement of an engine

7 Time of replacement of an engine

Regulation 13

Nitrogen oxides (NOX)

Regulation 13.2.2 reads as follows:

  • "For a major conversion involving the replacement of a marine diesel engine with a non-identical marine diesel engine, or the installation of an additional marine diesel engine, the standards in this regulation in force at the time of the replacement or addition of the engine shall apply."

Interpretation:

7.1 The term "time of the replacement or addition" of the engine in regulation 13.2.2 should be taken as the date of:

  • .1 the contractual delivery date of the engine to the ship;footnote or

  • .2 in the absence of a contractual delivery date, the actual delivery date of the engine to the ship,footnote provided that the date is confirmed by a delivery receipt; or

  • .3 in the event the engine is fitted on board and tested for its intended purpose on or after six months from the date specified in sub-paragraphs of regulation 13.5.1.2, as appropriate, the actual date that the engine is tested on board for its intended purpose applies in determining the standards in this regulation in force at the time of the replacement or addition of the engine.

7.2 Entry of the date in paragraph 7.1 above, provided the conditions associated with those dates apply, should be made in the item 8.a "Major conversion – According to regulations 13.2.1.1 and 13.2.2" of the Supplement of IAPP Certificate.

7.3 If the engine is not tested within six months after the date specified in sub-paragraphs of regulation 13.5.1.2, as appropriate due to unforeseen circumstances beyond the control of the shipowner, then the provisions of "unforeseen delay in delivery" may be considered by the Administration in a manner similar to UI4 of MARPOL Annex I.

Parent topic: Annex – Unified Interpretations to MARPOL Annex VI
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