Seaman’s Book and CDC Guide

A seaman’s book (CDC) is an official record documenting a seafarer’s identity and sea service.

Purpose Sign-on and sign-off entries for each voyage are recorded in the book; these are proof of your sea time.

Obtaining it Apply to the maritime administration of the issuing country; validity and renewal rules vary by country.

Digital record By keeping your sea service digitally on Sailorboard you can back up and verify your book entries.