reg 15 Inspection of non-United Kingdom ships
(1) An authorised person may inspect any ship which is not a United Kingdom ship for the purposes of— (a) verifying that all seamen serving on board who are required to be certificated hold valid appropriate certificates; and (b) assessing the ability of the seamen in the ship to maintain the watchkeeping standards required by these Regulations where there are grounds for believing that such standards are not being maintained because, while in a port in the United Kingdom or in the approaches to that port, any of the following have occurred— (i) the ship has been involved in a collision, grounding or stranding; (ii) there has been an unlawful discharge of substances from the ship when underway, at anchor or at a berth; (iii) the ship has been manoeuvred in an erratic or unsafe manner, or navigational course markers or traffic separation schemes have not been followed; or (iv) the ship has otherwise been operated in such a manner as to pose a danger to persons, property or the environment. (2) If an authorised person finds on inspection any deficiency of a kind specified in paragraph (3) he shall notify in writing the master of the ship and in the case of a ship registered outside the United Kingdom, the nearest maritime, consular or diplomatic representative of the flag State. (3) Deficiencies referred to in paragraph (2) are— (a) a failure of any seaman, required to hold an appropriate certificate, to have a valid appropriate certificate or a valid exemption from that requirement; (b) a failure to comply with the safe manning document; (c) a failure of navigational or engineering watch arrangements to conform to the requirements specified for the ship by the competent authority of the country in which the ship is registered; (d) an absence on a watch of a person qualified to operate equipment essential to safe navigation, safety radio communications or the prevention of marine pollution; (e) an inability of the master to provide adequately rested persons for the first watch at the commencement of a voyage and for subsequent relieving watches.