The IJUBOA Official Logbook, also known as the “Blue Book” is designed for anybody who works on a Jack-Up Barge, from new crew member to Bargemaster. The book belongs to the holder and is for the holder to use as a record of the experience they have gained working on Jack-Up Barges. It details the work that a person has done, the contracts they have worked on, the specific tasks they have performed, the training they have received and the certificates they hold. All entries in the book are validated by the signature of the vessel master, other senior company representative or, when appropriate, a provider of training. The logbook also allows for internal company assessments of competence to be recorded.