19. Master of ship may be deemed to be authorised
In the case of a ship not carrying as part of her complement a duly qualified medical practitioner, the master of the ship shall be deemed to be a person authorised to be in possession of the drugs so far as is necessary to comply with the requirements of the Merchant Shipping Acts of the United Kingdom, and it shall also be lawful for him or her, subject to any conditions prescribed by the Secretary of State, to administer and supply the drugs to any member of the crew in accordance with instructions prepared or sanctioned by the Board of Trade. The keeping of a record of the use of the drugs in the official log in accordance with the provisions of the Merchant Shipping Acts of the United Kingdom, shall be deemed to be in compliance with the requirements of these Regulations as to the keeping of records.