4Notwithstanding the repeal by this Act of section 13(4) of the [1979 c. 39.] Merchant Shipping Act 1979, that subsection (which makes transitional provision relating to the alteration, by virtue of subsections (1), (2) and (3) of that section, of punishments specified in the [1913 c. 31.] Pilotage Act 1913) continues to have effect in relation to the punishment for any offence committed before 1st January 1980 (being the date on which the provisions to which that subsection relates came into force).