1.—In this Act—

"local authority" means—

( a ) in the case of the administrative county of Dublin, other than the borough of Dún Laoghaire, the council of the county of Dublin,

( b ) in the case of the borough of Dún Laoghaire, the corporation of the borough,

( c ) in the case of a county borough, the corporation of the county borough, and

( d ) in the case of any other administrative county, the council of the county,

and any reference to the functional area of a local authority shall be construed accordingly;

"the Minister" means the Minister for the Marine;

"the Principal Act" means the Foreshore Act, 1933 .