Vessel Emission Control

The request was successful.

Dear Maritime and Coastguard Agency,

The River Thames along with the North Sea and English Channel now has a Nitrogen Emission Control Area (NECA). The North Sea NECA requires vessels laid down/built post January 2021 to comply with the restriction.

The Oceandiva is a new vessel that is soon to be operating on the River Thames and powered by electric motors drawing power from a significant amount of lithium iron batteries.

There is also a 'back up' diesel generator allegedly for use in an emergency.

Will this diesel generator be required to meet IMO Tier III emissions standards, regardless of the fuel being burned?

If a diesel generator is claimed to be used for emergency purposes, can it avoid meeting the IMO Tier III requirement?

Below what power output, from a diesel generator on a vessel being used to charge batteries or for emergency services would not be required to comply with IMO Tier III?

Yours faithfully,

Ralph Hardwick

FOI, Maritime and Coastguard Agency

Good afternoon,

I can confirm that your request has been received and logged and the appropriate department is looking into it for you. The reference number is FOI4157, and the expected deadline for our reply is 17th February 2023. (Please note there are circumstances where this deadline date may change in line with FOI regulations)

Kind regards

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Michael Greenwood, Maritime and Coastguard Agency

1 Attachment

Dear Mr Hardwick,

Please find attached the response to you FOI request.


Mike Greenwood
Technical Manager

UK Maritime Services

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