Prohibition on United Kingdom ships proceeding to sea without an IBWM Certificate
This section has no associated Explanatory Memorandum
23. Subject to regulation 40(2) (general provisions on detention) a United Kingdom ship to which this regulation applies must not—
(a)proceed to sea; or
(b)if it is already at sea, remain at sea,
unless an IBWM Certificate has been issued in respect of the ship which is still valid.