Except where the context otherwise requires, in this Part of this Act—
"contravention" includes a failure to comply with the provision in question, and "contravene" shall be construed accordingly;
"local authority" means—
(a) in England . . . , the council of a district or a London borough, the Common Council of the City of London, the Sub-Treasurer of the Inner Temple and the Under Treasurer of the Middle Temple;
(aa) in Wales, the council of a county or a county borough; and
(b) in Scotland, an islands or district council;
"noise" includes vibration;
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"statutory undertakers" means persons authorised by any enactment to carry on any railway, light railway, tramway, road transport, water transport, canal, inland navigation, dock, harbour, pier or lighthouse undertaking, or any undertaking for the supply of . . . , . . . , or hydraulic power, and includes a universal service provider (within the meaning of Part 3 of the Postal Services Act 2011) in his capacity as a person who provides a universal postal service (within the meaning of that Part);
"work of engineering construction" means the construction, structural alteration, maintenance or repair of any railway line or siding or any dock, harbour, inland navigation, tunnel, bridge, viaduct, waterworks, reservoir, pipeline, aqueduct, sewer, sewage works or gasholder.
The area of a local authority which includes part of the seashore shall also include for the purposes of this Part of this Act, except section 62 , the territorial sea lying seawards from that part of the shore; and—
(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(b) this Part of this Act (except section 62 and this subsection) shall have effect, in relation to any area included in the area of a local authority by virtue of this subsection—
(i) As if references to premises and the occupier of premises included respectively a vessel and the master of a vessel, and
(ii) with such other modifications, if any, as are prescribed.
Where more than one person is responsible for noise, this Part of this Act shall apply to each of those persons whether or not what any one of them is responsible for would by itself amount to a nuisance, or would result in a level of noise justifying action under this Part of this Act.
This Part of this Act does not apply to noise caused by aircraft other than model aircraft and does not confer functions on port health authorities.