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Submit this form to request a de minimis assessment from the Marine Management Organisation (MMO).

Respond to all 21 questions to request a de minimis assessment from the MMO. The MMO will review the information you provide and tell you whether your activity is below the de minimis threshold.

You can view the de minimis assessment process flowchart (opens in new tab) to see how the screening questions lead to a de minimis or EIA screening outcome.

If your activity is below the threshold, the MMO will confirm whether you are exempt from a marine licence. You must receive written confirmation from the MMO before starting the activity.

If your activity is above the de minimis threshold, you will need to complete an Environmental Impact Assessment (EIA) screening.

Before you start

You will need the co-ordinates of your planned activity in a shapefile or csv format. There will also be an opportunity to upload a project document to provide additional information if you wish. Please note your responses will not be saved until you submit the form.

Get a copy of your answers

If you want a copy of your answers by email after you submit the form, you'll need a GOV.UK One Login (opens in new tab). If you do not want to use a GOV.UK One Login, take a screenshot of your answers on the 'Check Your Answers' page before you submit the form.

Question 1: Is the activity taking place in Areas Beyond National Jurisdiction (ABNJ)
Areas beyond national jurisdiction (ABNJ) are marine areas beyond the limits of any country’s national jurisdiction. ABNJ is outside any country’s internal or archipelagic waters, territorial sea, Exclusive Economic Zone (which is typically out to 200 nautical miles), or extended continental shelf.
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