The Secretary of State shall by regulations prescribe the manner in which, and the methods by which, local authorities are to perform their functions under sections 79 and 80 of this Act.
It shall be the duty of the Secretary of State, before he makes regulations under this section, to consult such persons appearing to him to represent local authorities, such persons appearing to him to represent industrial interests and such persons appearing to him to be conversant with problems of air pollution as he considers appropriate.
Regulations under this section may in particular—
Regulations under subsection (3)(b) of this section may in particular require returns of—
A register maintained by a local authority in pursuance of regulations made by virtue of subsection (3)(d) of this section shall be open to public inspection at the principal office of the authority free of charge at all reasonable hours, and the authority shall afford members of the public reasonable facilities for obtaining from the authority, on payment of reasonable charges, copies of entries in the register.