What is a chain register on ship?

It contains certificate of test annealing and all report of inspection and examination before the gears are put in use.

It is a blue colour booklet called form-99

It is divided into 4 parts,

Part 1: It is for the entries of 4 yearly examination and annual examination of derricks and permanent attachment.

Part 2: It is for the entries of annual inspection of winches and gears, the derricks and its attachments.

Part 3: It is for the entries of examination of gears exempted from annealing.

Part 4: Record of annealing.