(1)For the purposes of the Public Health Act 1936 the Port of London shall be a port health district and the Common Council shall be the port health authority for that district; and the Minister of Health may by order—
(a)confer on the said authority jurisdiction over all waters within the Port of London and also over the whole or part of the district of any riparian authority within the meaning of Part I of that Act as amended by subsection (3) of this section ;
(b)assign to the said port health authority any of the functions, rights and liabilities of a local authority under any of the enactments to which section 40 of this Act applies or would apply but for the proviso to subsection (4) of that section and under any provision of Part II of Schedule 11 to this Act or any local statutory provision continued in force by section 87 of this Act and any of the functions, rights and liabilities of a local authority or a food and drugs authority under any provision of the Food and Drugs Act 1955 ; and
(c)extend to all waters mentioned in paragraph (a) of this subsection and the whole or part of any district so mentioned any such provision as aforesaid or any instrument made under any such provision, being a provision or instrument which would not otherwise so extend.
(2)In the foregoing subsection the references to a local authority and the district of an authority shall include references respectively to the Greater London Council and, in relation to that Council, Greater London.
(3)Part I of the Public Health Act 1936, so far as it relates to port health districts and authorities, shall have effect subject to the following modifications:—
(a)references in sections 2 and 4 to a local authority and the district of an authority shall be construed in accordance with the last foregoing subsection;
(b)no order under the said Part I constituting a port health district shall include any part of the Port of London in that district or confer jurisdiction over any area for the time being subject to the jurisdiction of the port health authority for that port;
(c)section 9 shall apply to any order under subsection (1) of this section as it applies to an order under the said Part I constituting a port health district; and
(d)in Schedule 1, in its application to the Port of London, paragraphs 2 (1) and 3 and, in paragraph 4 (2), the words from " in respect of " to " foregoing paragraph " shall be omitted.