Refresher courses must be redone periodically to keep a certificate valid. Typically 4 days.
The revalidation course masters and deck officers take to renew a certificate of competency. It updates knowledge of regulation, navigation practice, cargo work and safety management, and confirms continued professional competence rather than teaching new material.
Renews a deck certificate of competency.
A certificate of competency due for renewal.
Approvals and durations as published by DG Shipping, and the duration can differ between institutes. Fees and batch dates are set by the institute.