The name tag plate on this ladder displays a few important items that can be cross referenced with the certificate: Type, Model, Length, Production date, as well as the serial number (Prod.No) and the approval standard.
When a vessel navigates in confined waters, such as in a harbour or narrow channel, it is well known among experienced pilots that the ship handling is greatly affected by the hydrodynamic forces and moments acting between ship and bank or sidewall of the channel.