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For proof of enrollment in the KZV or GZV program, provided you are enrolled and have paid.
Below are a number of roles and descriptions on how to obtain the correct qualifications. These are possible routes for obtaining a Certificate of Competency for sailing ships. There are always exceptions and other paths to these routes; here we list the most common ones for the following roles:
Do you have a question about another route or a specific detail regarding obtaining your Certificate of Competency? Send an email to Cosmo@ezs.nl
A role to gain experience on board. To be allowed to sail, you need:
The seaman’s book can be applied for at KIWA
To submit this application to KIWA, you need:
There are costs associated with applying for the Seaman’s Book.
Proof of enrollment in a maritime training program can be requested from the office via info@ezs.nl after enrolling in the Kleine or Grote Zeilvaart.

For proof of enrollment in the KZV or GZV program, provided you are enrolled and have paid.
Applying for a Seaman’s Book Certificate of Competency at KIWA
You can become a Rating Deck, which is a crew member who supports the deck officers. You are therefore an assistant on deck, without a management role. To apply for the Certificate of Competency as Rating Deck at Kiwa, you must have:
The seaman’s book can be applied for at KIWA
For this, you need:
Proof of enrollment can be requested from the office via info@ezs.nl after enrolling in the Kleine or Grote Zeilvaart.
Inland waterway sea time
You can progress from the traditional sailing fleet (bruine vloot) to sailor on seagoing sailing ships.
For the general Rating Deck Certificate of Competency (qualified rating deck all ships), all sea time must be completed at sea.
To be allowed to sail at sea, you need a Certificate of Competency. There are different requirements for each role. You start at the bottom of the ladder and build up your qualification with knowledge, service time, courses, and medical examinations. Requirements may differ for each waterway, type of ship, and role.
The components do not all have a fixed order. Some things can be done simultaneously; you can already be sailing and thus building up service time, while attending school in the winter.
Through theoretical knowledge at school, you obtain a certificate of theory.
With your service time, you build up practical knowledge, effectively an internship period.
You keep track of the exercises and experiences during your service time in the Training Record Book
To be allowed to sail, you must take additional courses such as the STCW courses.
A valid medical examination
Through the EZS, you can apply for a Certificate of Proficiency with all the above items
With the Certificate of Proficiency, you can apply for your Certificate of Competency at KIWA
After completing and passing your exams for the Kleine Zeilvaart or Grote Zeilvaart program, you will receive a diploma. This diploma is a certificate of theory. You have obtained all the theoretical knowledge associated with the program.
The certificate of theory is valid for five years.
During your service time, you gain practical experience. You demonstrate in practice to your mate or captain that you understand and have mastered various matters. These sailing days are therefore an internship period.
You keep track of the sailing days in the Training Record Book. The captain or mate signs off the sailing days. In addition to tracking sailing days, the Training Record Book contains various tasks. You must demonstrate that you can perform all these tasks well and have them under control during your period on board. The skipper/mate assesses this and signs them off upon sufficient proficiency.
The Training Record Book can be downloaded here, or you can buy a paper version of the book from the school for €25.
Important points regarding the Training Record Book are as follows:
You can also keep track of your service time in a Seaman’s Book (available from KIWA, for more information see the article above about the Rating role).
As of July 1, 2026, it is mandatory to complete a radar course (RNOL) at school prior to your application for your Certificate of Proficiency. In addition, you must have participated in the skills day.
You can apply for an exemption for this skills day if you have the Basic Skills Checklist filled in by your captain or skipper, which can be downloaded here. You can apply for the exemption by sending a copy of the fully completed form to Cosmo@ezs.nl
Once you have completed all tasks, the Training Record Book can be signed off by the school.
Please note: depending on how complete your application is, how busy the school is, and holiday periods, it may take two to four weeks before you receive your Certificate of Proficiency.
STCW stands for Standards of Training, Certification and Watchkeeping, an international convention of the International Maritime Organization (IMO) that sets global minimum requirements for the training, certification, and watchkeeping of seafarers to ensure safety at sea. It includes mandatory training such as Basic Safety Training (BST) (basic safety, fire fighting, first aid, personal survival techniques) and specialized courses, so that everyone on board knows how to act in emergency situations, such as fire, abandoning ship, and survival at sea.
This means that
The maritime school offers these courses for all its students and former students of KZV and GZV.
Go to Opleidingen & cursussen
You can now apply for the Certificate of Proficiency at the maritime school via this form.
To be able to issue the Certificate of Proficiency, we check all the information provided. We will also verify the sea time. We do this by contacting the officer or captain who signed off the tasks.
Issuance of Certificate of Proficiency
If all conditions have been met (theory, practice, courses, and medical examinations), you can apply for a Certificate of Proficiency. To do so, you must
We check all the information provided and will verify the sea time, after which we can issue your Certificate of Proficiency. The Certificate of Proficiency must be converted into a Certificate of Competency within 4 years.
Please take into account a processing time of two to four weeks after receipt of all documents. During holiday and exam periods, it will take longer. There are costs associated with processing your application.
Finally, you can apply for your Certificate of Competency with your Certificate of Proficiency and a number of other documents. You do this at Kiwa (www.kiwaregister.nl), an inspection body that works on behalf of the government. You create an account here, but please note, this does not work on a phone.
For the application, you need the following:
| Feature | Seaman’s Book | Training Record Book |
| Function | Proof of identity and sea time registration | Training log for competencies |
| Registration | When and where you sailed | What you learned/did on board |
| Who uses it? | Every professional seafarer | Trainees and students |
| Required for | Working at sea and renewing competency | Obtaining the Certificate of Proficiency |

The Training Record Book
Basic skills checklist
Certificate of Proficiency application form
Applying for a Certificate of Competency at KIWA
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