Proficiency in Designated Security Duties

Security Check

STCW Training UK Ltd can now offer the courses below which are fully MCA approved online courses and allows you to study the course in a few hours in the comfort of your home or workplace and then attend our training centre to take an online multi-choice test.

Exams cost £75 (inc VAT). We prefer to undertake exams on a Monday or Friday between 9.30am-4.00pm. Alternative days/times or a bespoke express service can be arranged but a surcharge of £25 will be charged.


STCW Proficiency in Designated Security Duties is simple multiple choice exam which takes less than 30 minutes. On completion your certificate will be produced and validated allowing you to work immediately in your chosen employment.

On average delegates spend around 3 to 4 hours studying and conducting practice tests making the online course quicker, more convenient and generally costing considerably less than the full classroom based courses. We arrange the regular test days for the middle period of the day to allow delegates travelling to us to avoid having to find overnight accommodation.

Tests can be arranged using our Express service at bespoke times for an extra charge if your require your certificate immediately.

The course and certificate are provided by Marlins who are internationally recognised. Certificates are accepted by the vast majority of flag nations and fully endorsed by the Maritime and Coastguard Agency who are the UK's certifying authority. (A full list of flag nations who accept the certificate is available as a download at the bottom of this page)

To start the course navigate to: and select "STCW Security Courses" on the left sidebar. This will take you to the course selection page:

  • Select the Merchant Ship picture - not the cruise liner, unless you intend to be working mainly on cruise liners
  • Select “Yes” to the question "Do you have designated security duties onboard" (the picture showing a green tick on two walkie talkies)
  • Select UK flagged vessels (the MCA flag picture) which will ensure your certificate is valid on 99% of vessels. 

The Marlins website will charge you US$60 for the course. - Please note: the course is available worldwide therefore Marlins' charges are in US$

When you have completed the online training, print your "Proof of Study Certificate" and you are ready to take the test. At this stage please email us This email address is being protected from spambots. You need JavaScript enabled to view it. or phone us 01803 853843 to let us know you have completed the training and we will send you a payment link for you to pay for the test and our administration fee. You can then arrange to take the test at our training rooms in Kingskerswell, Devon on a regular test day or mutually convenient date for express applicants.

At current exchange rates our cost for test and administration is £75. Typical course and test cost will total approximately £120 dependent on exchange rates £ sterling to USD