Proposals that require static sea surface infrastructure or that significantly reduce under-keel clearance must not be authorised within International Maritime Organization routeing systems unless there are exceptional circumstances.
- Non-permanent static sea surface infrastructure that may reduce under keel clearance and impact on vessel traffic have the potential to be authorised; for example jack-up vessels.
- Proposals should show that they have consulted with the Maritime and Coastguard Agency to define ‘significant’ reduction of under-keel clearance in relation to their proposal during the scoping process.
- International Maritime Organization routeing and reporting systems may change in the future.
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