List of I-VMS type-approved devices for under-12 metre English vessels
Information to support vessel owners and licence holders of under-12 metre English vessels.
Important update 鈥 12 May 2025
A licence condition is now in force, requiring the use of an MMO type-approved I-VMS device on any English under-12m vessel undertaking any trip to sea.聽
An I-VMS device is a tool that captures the position, course and speed of the vessel. This data will provide valuable insights to the activities of the inshore fleet, and when combined with other data, such as that collected for the over-12m fleet, we will have a more complete picture of all fishing in English waters. This will be used to support decisions and assessments, such as, but not limited to, fisheries management planning, policy development, conservation efforts, statistical and scientific analysis, compliance and law enforcement.
See below for details on MMO type-approved devices and information on the steps to take to purchase and install a device.
For more details about I-VMS please visit our聽guidance pages听.
Type-approved devices
The following tracking devices have passed the MMO I-VMS type-approval process by meeting the I-VMS device specification of requirements. All products have undergone evaluation under the I-VMS approval process and are expected to last for at least five years provided they are handled appropriately. All of these products have been designed to be suitable for vessels with or without on-board power.
Fishers should consider the suitability of each device for the vessel and their business, including any warranties, support services, costs and payment plans that suppliers may offer.
Device provider | Fulcrum Maritime Systems Ltd | Succorfish Ltd |
---|---|---|
Approved I-VMS tracking device | Nemo | SC2 |
Date of approval | Nov-21 | Nov-21 |
Product adaptable for all vessels | Yes | Yes |
Power options | Onboard electrics, Solar | Onboard electrics, Solar, Power pack |
Companies
Company name: Fulcrum Maritime Systems Ltd

Device name: CLS Nemo
Date of approval: November 2021
Website: https://fulcrum-maritime.groupcls.com/nemo-i-vms-type-approved-device/
Contact telephone number: +44 (0)1708 788 400 UK
Product adaptable for all vessels: YES
Dimensions: 222 x 127 x 105mm
Supplier response to service/support questions.
Company name: Succorfish Ltd

Device name: SC2
Date of approval: November 2021
Website: www.succorfish.com
Contact telephone number: +44 (0)1914 476 883 UK
Product adaptable for all vessels: YES
Dimensions: 210 x 95 x 55mm
Supplier response to service/support questions.
Purchase and install a device
You will need a type-approved device installed on your vessel when undertaking any trip to sea from 12 May 2025, or risk being unable to fish legally and possible enforcement action.
Follow the steps below to arrange for the purchase and installation of an MMO type-approved I-VMS device. You can also view and download the .
Choose your preferred type-approved device
Review the information above or contact each supplier to decide which device and purchase option is most suitable for your circumstances.
Purchase device from supplier
Once you鈥檝e chosen a device, contact your preferred supplier to purchase and arrange installation.
Install device
Suppliers will provide you with your device, along with details of their approved engineers so you can arrange the installation of your device.
You should not attempt to install your device yourself - any damage or manual interference could void your device warranty.
Read the guidance on operational requirements
Once you have your device, make sure you are familiar with the operational requirements of the licence condition. This includes checking your device, its power supply and data transmissions.
Visit the guidance page on I-VMS licence condition requirements.
Related content
Updates to this page
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Guidance updated to reflect that a licence condition is now in force for the use of I-VMS devices on licensed English vessels, under-12 metres in length, undertaking a trip to sea.
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Update 18 January 2024
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7 December 2023 update
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Update to service support packs
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I-VMS update 16 August 2023
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I-VMS update
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Added updated dated 19th June
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List of approved devices updated following results of independent testing.
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25 April 2023 update.
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Update 21st April
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I-VMS update 21/10/2022
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Changes to page in line with reinstatement of Maritime Systems and extension of tranche 1 dates
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I-VMS Updates to page
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First published.