FAQ I don't have a seaman's book. Can I still apply for the traineeship on board? The traineeship on board, to date, is only available to professional figures with a seaman's book, such as engine officers or skippers.If you do not have a seaman's book, you may apply for a traineeship on shore with companies operating in the maritime sector. Exeptions may apply. The traineeship on board, to date, is only available to professional figures with a seaman's book, such as engine officers or skippers.If you do not have a seaman's book, you may apply for a traineeship on shore with companies operating in the maritime sector. Exeptions may apply.