19. These Regulations are enforced by the following local authorities—
(a)in any part of England where there is, within the meaning of the Local Government Changes for England Regulations 1994(1), a unitary authority for that local government area, that authority;
(b)where there is not a unitary authority—
(i)in a metropolitan district, the council of that district;
(ii)in a non-metropolitan county, the council of that county; or
(iii)in each London borough, the council of that borough;
(c)in the City of London, the Common Council.