Except in so far as Her Majesty may by Order in Council otherwise provide, nothing in section 1 above shall affect the operation of any enactment contained in a local Act passed before the date on which that section comes into force.

Nothing in section 1 above, or in any Order in Council under that section or subsection (1) above, shall affect the operation of so much of any enactment passed or instrument made before the date on which that section comes into force as for the time being settles the limits within which any harbour authority or port health authority has jurisdiction or is able to exercise any power.

Where any area which is not part of the territorial sea adjacent to the United Kingdom becomes part of that sea by virtue of section 1 above or an Order in Council under that section, subsection (2) of section 1 of the [1964 c. 29.] Continental Shelf Act 1964 (vesting and exercise of rights with respect to coal) shall continue, on and after the date on which section 1 above or that Order comes into force, to have effect with respect to coal in that area as if the area were not part of the territorial sea.

In this section—

• "coal" has the same meaning as in the [1946 c. 59.] Coal Industry Nationalisation Act 1946;

• "harbour authority" means a harbour authority within the meaning of the [1964 c. 40.] Harbours Act 1964 or the [1970 c. 1. (N.I.).] Harbours Act (Northern Ireland) 1970; and

• "port health authority" means a port health authority for the purposes of the [1984 c. 22.] Public Health (Control of Disease) Act 1984.