A commissioned ship is not necessarily at the same readiness state in every navy. Some states commission early for ceremonial or reporting reasons while testing and correction continue. British contracts tend to leave faults with the builder until commissioning, creating an incentive for the Royal Navy to accept the ship later. A public commissioning date can therefore precede or follow the less visible point at which a warship is fully tested and operationally useful.
Notable Point · 2:17:24-2:18:20
Contract rules shape when a ship is commissioned
British ships tend to commission later because unresolved defects remain the builder's responsibility until acceptance.