This Act shall come into force on such day as Her Majesty may by Order in Council appoint.

In the Act of 1949 " the Merchant Shipping Acts " shall mean the Merchant Shipping Acts 1894 to 1958 and this Act; and this Act shall be construed as one with those Acts.

This Act may be cited as the Merchant Shipping Act 1964, and the Merchant Shipping Acts 1894 to 1958 and this Act may be cited together as the Merchant Shipping Acts 1894 to 1964.

This Act extends to Northern Ireland.